Nextbook Ares 8A with Android 6.0.1 root solutions

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martyfender

martyfender

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UPDATE: Please read the updated information at the bottom of this post, on my new recommendation to use the easier method, SuperSU systemless, to patch your original boot.img. This is in my quick start guide at the end of it, also. You still need to read my info on getting setup, also.
https%3A%2F%2Fimg.xda-cdn.com%2Fs6ERMdH8OlQNmgQtMF_a7FOZvZ8%3D%2Fhttps%253A%252F%252Fimg.xda-cdn.com%252FI0wuTWcJ1WvHBH6wpRErdqrIqhw%253D%252Fhttps%25253A%25252F%25252Fimg.xda-cdn.com%25252Fu2csuucqiq9tAqxREzYgAWAjiVo%25253D%25252Fhttps%2525253A%2525252F%2525252Fimg.xda-cdn.com%2525252FIMaH7stgkiHwFnRUnE4ZHGYQ06I%2525253D%2525252Fhttps%252525253A%252525252F%252525252Fimg.xda-cdn.com%252525252F-6QFf1Y8PLiV7wvnGcGCx4a54N0%252525253D%252525252Fhttps%25252525253A%25252525252F%25252525252Fimg.xda-cdn.com%25252525252FaBBICzsznGyRmwF7qsHv6yhhjDs%25252525253D%25252525252Fhttps%2525252525253A%2525252525252F%2525252525252Fimg.xda-cdn.com%2525252525252FoigqsTerjvADiVVBjAuP0WUEkKU%2525252525253D%2525252525252Fhttp%252525252525253A%252525252525252F%252525252525252Fwww.nextbookusa.com%252525252525252F_products%252525252525252F161111165056-thumb.jpg

I have started this thread as a place to post a working root solution for this tablet.

https://www.walmart.com/ip/Nextbook...-System/122137749?variantFieldId=actual_color

 This is a great Android tablet for the price. It features an updated Intel Cherry Trail quad core 1.92 GHz processor, 1gb RAM, 16gb internal storage. and Android 6.0.1 Marshmallow.

UPDATE: There is a newer version of the tablet with a manufacturing sticker date of September, 2017. Despite retaining the 8A model number, it has a slower, ARM processor and Android Nougat 7.1.1. Although it is quite snappy, It shows much slower benchmarks in AnTuTu and has a much smaller battery, about half the size. Also the boxes are about 2/3 the thickness of the older, 6.0.1 tablets.
The chances of rooting it are very slim. My solution will not work for it. Fastboot mode appears to be disabled on this and one other Nougat tablet that I own. I am returning the one I tested.

UPDATE: I now have root, a custom TWRP recovery and modified boot images for the Android 6.0.1 version of this device.

I would like to thank @vampirefo for his TWRP and original boot images, for without his work, this would not be possible.

PLEASE DO NOT CONTACT HIM ABOUT THIS HE WILL NOT PROVIDE ANY SUPPORT FOR IT, THAT WILL BE PROVIDED BY ME AND OTHER GENEROUS FORUM MEMBERS.

I strongly recommend, though that you donate to him, in his signature, for all of his hard work on this, even if it is a small amount. I asked him twice about this and he never responded, so please donate to him.

His original boot.imgs are modified to remove encryption and make the kernel permissive.
I unpacked them and removed dm_verity to remove the failed verification message, on boot then repacked them.

FILES ARE UP ON ANDROID FILE HOST
https://www.androidfilehost.com/?w=files&flid=197521
Choose the version of the tablet that you own. Go to settings, about tablet and scroll to the bottom and look at the first few numbers of the build number. For example: V1.2.0.
Do not use this on the 1.0.8 version of the tablet or you will loose sound, wifi and maybe bluetooth. If you have this version of the tablet and can provide me a twrp, backed up, original boot.img, I can modify it to work with your tablet. You can temp boot twrp, to do this (see below). As of yet no one has provided one to me for the 1.0.8 tablet version.

UPDATE 10/24/2017: I now have a I now have a 1.0.8 modified boot.img up on android file host:
https://www.androidfilehost.com/?fid=962021903579487577

Here is a twrp backup of the 1.2.0 rom, with userdata deleted to start fresh. It will boot to the Android setup screen. If you have any major, unexplained problems, I recommend starting fresh with this. It works great on either tablet version: 1.1.1 and 1.2.0.
https://www.androidfilehost.com/?fid=673368273298970542

UPDATE 12/15/2017: I have uploaded a pre-rooted TWRP backup of my original V1.1.1 tablet
https://www.androidfilehost.com/?w=files&flid=235141

TO PREPARE YOUR DEVICE:

UPDATED 12/3/2017: I now have found a Version 2.1.5 of the tablet and have uploaded an unrooted, TWRP backed up version of it. It also contains the original recovery so do not check that box when flashing it in TWRP unless you intend to replace TWRP with the stock recovery

https://www.androidfilehost.com/?fid=673791459329065002

This will be long and thorough, because I see so many people who have trouble with this because they don't have their computer setup properly from the get go.

This will help you get ready to be successful in applying this.
First and foremost, unlocking your bootloader will delete all userdata on the tablet so you need a good backup of important files. If you backup to an external sd card, I strongly recommend also copying the files to an external source such as your computer. You can do that through mtp or remove the card and place it in an sd card adapter and insert it into an sd card reader. I did not do this, even though I knew better and my sd card was corrupted in the process, so I lost the original twrp backup of the virgin, untouched system partition.
Secondly, if you are on windows you need the proper drivers for adb and fastboot installed on your system. Proper drivers are the number one issue I see with windows users. For this Intel device get them here:
https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices

Here are the steps to install adb and Intel drivers, in the proper order:

The best way to to set up adb and fastboot in windows is to install it system wide. Here is an installer to do this that works well:
https://xdaforums.com/showthread.php?t=2588979
Install process for 15 sec adb:
1. Run it (Require administrator privileges)
2. Press Y/Yes to install ADB and Fastboot
3. Press Y/Yes to install ADB system-wide
4. Press N/No to skip installing Drivers
5. 15 seconds passed - finished!
6. Now install the Intel drivers listed above and here, again:
https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices


Third, enable developer options by going to settings, about tablet, and tap on the build number seven times to enable it.

Then go to developer options and make sure usb debugging is enabled. watch on the tablet screen for a popup dialog the approve usb debugging. check the box to always allow for this computer and hit ok.
Now, with the proper drivers installed, adb and fastboot properly installed, You need to test that it is functioning properly. This is done with the tablet booted into Android. If you used the adb I recommended, go to my computer, C drive and open the newly created adb folder. Left click in an open area of the folder to select it. then shift right click to open a contextual menu, then select: open a command prompt here. Once the command window is open, type:
Code: 
adb devices
and hit enter:
you should see the device serial number listed. I am now doing this from linux, so it may differ,slightly:
adb devices
List of devices attached
YFGV1216059870 device
Sometimes you get starting daemon on port... and you have to type it again to see the device listed. If you don't see this, then your drivers or adb/fastboot aren't properly installed.
If you see your device, then type:
Code: 
 adb reboot bootloader
and hit enter. your device should now reboot to bootloader mode. once in bootloader mode, type:
Code: 
fastboot devices
enter and you device should once again be listed.
the next step, is to unlock your bootloader. Warning: ALL OF YOUR USERDATA WILL BE DELETED, HENCE THE BACKUP CREATED EARLIER. YOU HAVE BEEN WARNED!
It has come to my attention that this is not clear: after unlocking the bootloader, all userdata will be deleted, like doing a factory reset.
Go into developer options and select OEM unlocking. This does not unlock your bootloader, it only enables the ability to do it from a fastboot prompt.

Now jump to the Quick Start guide for updated instructions:

Older, system mode method hidden, please use the instructions in the Quick Start Guide

Now, while still booted into bootloader mode, type:
Code: 
fastboot flashing unlock
and hit enter to unlock your bootloader. All data will be deleted and the tablet will be re-encrypted upon boot, without encryption option removed from the bootloader. Now type
Code: 
fastboot reboot
t, to reboot the tablet and you should reboot to the android setup screen, You can set it up again if you want, but you will be deleting userdata later when you flash the modified boot.img, so keep this in mind.
So you may want to wait to unlock until I release twrp and the boot.img, so you can continue using the tablet.
UPDATE: The files are now live.

To summarize, the above steps are to prepare you for the next exciting adventure to come and to realize the full potential that a rooted device offers..................
To be continued.

THE FILES ARE NOW ON ANDROID FILE HOST. DOWNLOAD HERE:

https://www.androidfilehost.com/?w=files&flid=197521

Boot or flash TWRP Recovery and flash boot.img

These instructions are for Windows, for Linux you must type sudo before fastboot commands
Instructions: first make sure you read the instructions above to be sure you have the proper drivers and adb and fastboot are installed and tested before proceeding. Unlock your bootloader per above instructions. WARNING! DANGER WILL ROBINSON! THIS PROCEDURE WILL DELETE ALL USERDATA ON YOUR TABLET SO BE SURE YOU HAVE A BACKUP OF ANY IMPORTANT DATA.

First, unzip the files to a directory. I usually do it in C:\adb, and leave the SR2-SuperSU-v2.82-SYSTEMMODE.zip, zipped.

Now, left click in that folder in an empty spot, or where ever you unzipped it and select it. Now right click and choose open a command prompt here from the contextual menu. once the command window is open type
Code: 
adb devices
, hit enter, to confirm your device is listed. Now type
Code: 
adb reboot bootloader
and it should reboot to bootloader mode.
I recommend booting into twrp temp first so you can backup your original boot, recovery and system.
now:
Code: 
fastboot boot Ares8A_recovery_twrp.img
enter and it should reboot to twrp temp. Don't choose read only after it boots. Once in twrp choose backup and hit select storage and choose micro sdcard. now swipe to backup. You can later install twrp permanently if you want to. To flash permanently:
From bootloader mode:
Code: 
fastboot flash recovery Ares8A_recovery_twrp.img
UPDATE: See the the end of my updated quick start guide for updated info on a simpler method to patch your original boot.img with either systemless SuperSU or Magisk. I no longer recommend flashing my patched boot.imgs, but instructions are still provided here for historical reference and for the few who still want SuperSu in the unofficial, system mode.
I have hidden the older method here, but is still here for those who still want system mode SuperSU:
Now
Code: 
fastboot flash boot Ares8A_111_boot.img
enter, for the 1.1.1 version, or
Code: 
fastboot flash boot Ares8A_120_boot.img
enter, for the 1.2.0 version, to flash the appropriate boot.img

For the newer 2.1.5 version of the table:
Code: 
fastboot flash boot unsigned-new.img
hit the enter key, to flash.

Next, again in bootloader mode issue:
Code: 
fastboot format userdata
enter, and wait for a successful message in the command window and on the tablet. it will take a little while.
Next
Code: 
fastboot format cache
enter, wait. Now
Code: 
fastboot reboot
hit enter, and the tablet should reboot to the android setup screen where you can set it up. It will take some extra time to reboot, so be patient. You may see the boot animation for awhile. This will be booted unencrypted now without root. I recommend doing a backup again in twrp before rooting.

There has been some misunderstanding about the above. Your data is encrypted and will not be accessible it twrp, hence, the backup before you do anything with this tablet.
You must wipe the userdata, so a new, clean data partition can be created that is unencrypted. A factory reset is not enough. You will have problems if you don't format userdata in the above step to created a decrypted data partition.

Flashing SuperSu for root
For the v1.1.1 and v1.2.0 tablets:
Make sure you have the SR1-SuperSU-v2.82-SYSTEMMODE.zip on your ext sd card.

For the newer 2.1.5 you need a systemless version of SuperSU:
SuperSU-v2.82-201705271822.zip Get it at:
https://s3-us-west-2.amazonaws.com/supersu/download/zip/SuperSU-v2.82-201705271822.zip Copy it to your external SD card.
When flashed, this systemless version will also patch your boot image for sytemless mode.

Furthermore, to install SR1-SuperSU-v2.82-SYSTEMMODE.zip, or SuperSU-v2.82-201705271822.zip, either boot twrp temp again, from bootloader mode issue:
Code: 
fastboot boot Ares8A_recovery_twrp.img
, or if you already have it installed permanently and you are booted normally, issue
Code: 
adb reboot recovery
enter to boot to it.
Next hit the install button in twrp and choose SR1-SuperSU-v2.82-SYSTEMMODE.zip or SuperSU-v2.82-201705271822.zip and swipe to confirm flash. after it is complete, go back to the main menu and choose reboot system. I choose not to install the twrp app before reboot.
Once rebooted, open the supersu app, making sure the following are selected in settings enable superuser, default access prompt or grant, enable su during boot, trust system user and enable pro, then go back and enable full content in logging. Next download a root check app to confirm root.
congratulations you should now be rooted! Now download a desired app that requires root and test to confirm you have no problems with root.
If you want an app that makes it easy to reboot in the various modes, I recommend Simple Reboot by Francisco Franco. It works great with this device and android version.
I was using Easy Reboot [ROOT] by Simone Luconi with my older, ares 8 with 5.1.1 and it had worked well.
Apparently it is not compatible with this device or rom. when I rebooted to recovery with it, I was not able to mount my external sd card and the card was corrupted on reboot. That is why I don't have a virgin, unrooted, copy of my system image now.
Good luck!


Here is a quick start guide for the already initiated:
https://xdaforums.com/showpost.php?p=72970060&postcount=82

Here is a link to my post for some apps I personally find useful:
https://xdaforums.com/showpost.php?p=72995672&postcount=112

Please report successes and problems on this thread, not to @vampirefo.
Thanks
 
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martyfender

martyfender

Senior Member
Mar 9, 2017
3,391
1,860
Indianapolis, IN
@vampirefo has a solution, but has not released it. I'm not sure if it needs more work or testing before release? He has been quiet in this regard. It is my hope that he will reply with more relevant information about this.
I and maybe others, would be willing to give a donation, if that would help.

Thanks
 
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martyfender

martyfender

Senior Member
Mar 9, 2017
3,391
1,860
Indianapolis, IN
Bootloader unlocking

WARNING! UNLOCKING THE BOOTLOADER WILL DELETE ALL OF YOUR DATA!
DON'T DO THE UNLOCKING UNTIL WE CAN REMOVE ENCRYPTION AND HAVE TWRP FOR BACKUP. YOU HAVE BEEN WARNED!

You can enable the ability for the bootloader to be unlocked with a setting in the developer options. Like I stated, it enables the ability to unlock it, but does not unlock it. On must use the command in adb, through a computer. make sure usb debugging is enabled in the developer options. In a command prompt issue adb devices to make sure your device is showing up. There will be a prompt on your tablet to allow this. Confirm this.
Now with the tablet off, boot into fastboot by hold the volume key down button and the power button at the same time. Also, you can type: adb reboot bootloader then hit enter to get into bootloader or fastboot mode.
Once in fastboot mode, open a command prompt in windows and type fastboot devices to confirm your device is still showing up. If my memory serves me correctly there will also be a security confirmation on the tablet, to approve.
To unlock the bootloader type: fastboot flashing unlock. All data will be deleted and (I believe,) the tablet will be re-encrypted upon boot, without encryption option removed from the bootloader.

I HAVE NOT TESTED THIS, AS I DON'T WANT TO DELETE DATA, UNTIL WE HAVE TWRP TO BACKUP AND ROOT.

6/7/2017 UPDATE: I HAVE UPDATED THE UNLOCK COMMAND. I HAVE UNLOCKED MY BOOTLOADER. AS I THOUGHT, ALL USER DATA IS DELETED (FACTORY RESET). I USED THE FIRST:
"fastboot flashing unlock" Unlocks the device. Allows flashing any
partition except bootloader-related
partitions
"flashing unlock_critical" Enables flashing bootloader-relate partitions.
all fastboot commands are listed by just typing fastboot, while booted into bootloader mode. My tablet is still running great with my bootloader unlocked. One more tiny step toward gaining root, however, there is still a long way to go.

Please post any additional info if I have something wrong, or left out any important steps.
Thanks
 
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martyfender

martyfender

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Mar 9, 2017
3,391
1,860
Indianapolis, IN
Geenify: How to grant permissions required by some features on non-root device?

I am currently using Greenify on my non-rooted device and it is working very well.
By using adb, one can grant it additional permission so it performs almost as well on an unrooted device. Here is a link for this:
https://greenify.uservoice.com/know...o-grant-permissions-required-by-some-features
I copied and pasted each command, one at a time, in the command prompt then hit enter, to enable each one.
In Greenify settings, I also have aggressive doze enabled, Automated hibernation enabled, Wakeup Tracker enabled and Quick action Notification enabled.
 
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martyfender

martyfender

Senior Member
Mar 9, 2017
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1,860
Indianapolis, IN
How to boot into stock recovery mode

To boot to the stock recovery through adb:
adb reboot recovery
You will see "no command" on the tablet.
Hold the power button and volume up for about 4sec then release the volume up, where you should go to the stock recovery screen.

You can also get to it without a computer. With the tablet shut down, hold the volume down power button until it boots to bootloader or fastboot mode.
Use the volume up or down button to toggle through the options: normal boot, restart bootloader, recovery mode, reboot, power off and ftm mode. Choose recovery and use the volume up and power button as before.
In addition you can get to the efi bootmanager by holding the volume up, power button when the device has been shutdown first.
 
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martyfender

martyfender

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Mar 9, 2017
3,391
1,860
Indianapolis, IN
adb security confirmation

Unlike my Nextbook Ares 8 with 5.1.1, with this newer tablet which has 6.0.1, I have to reaffirm the security prompt on the device each time, despite checking the box: "Always allow from this computer".
Maybe this is because of the tightened security in Android Marshmallow? I'm not sure.
If there is a way around this each time, please let me know
Thanks

UPDATE: After I unlocked the bootloader and the tablet was factory reset, I no longer have to re-approve each time after checking the box: "Always allow from this computer"
 
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A

allmehtc

New member
Oct 19, 2016
1
0
Would love to see some break throughs with this device aswell. Cheers to any one working in it.
 
G

Giftlift

New member
Jun 6, 2017
3
0
Is this relevant? It would seem they are the same device. twitter.com/srsroot/status/846663673645010944?lang=en
 
V

vampirefo

Senior Member
Apr 3, 2010
3,243
1,641
This requires a lot of work.
1. Google kernel source.
2. Build bootable kernel
3. Unlock bootloader
4. Boot kernel with 5.1 ramdisk.
5. Use adb to pull boot.img and recovery.img
6. Download TWRP source modify source for intel
7. Make device tree
8. Unpack recovery.img use that kernel in your TWRP.
9. Make boot.img permissive, remove encryption repack and flash.
10. Flash TWRP.
11. Flash system mode SuperSU for root.



Sent from my LIFE X8 using Tapatalk
 
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martyfender

martyfender

Senior Member
Mar 9, 2017
3,391
1,860
Indianapolis, IN
vampirefo said:
This requires a lot of work.
1. Google kernel source.
2. Build bootable kernel
3. Unlock bootloader
4. Boot kernel with 5.1 ramdisk.
5. Use adb to pull boot.img and recovery.img
6. Download TWRP source modify source for intel
7. Make device tree
8. Unpack recovery.img use that kernel in your TWRP.
9. Make boot.img permissive, remove encryption repack and flash.
10. Flash TWRP.
11. Flash system mode SuperSU for root.



Sent from my LIFE X8 using Tapatalk

@vampirefo Thanks for taking the time to post this.
To familiarize myself with Linux, I created a persistent linux Mint 17.2 Mate 64 bit on a 32 gb usb thumb drive before I decide to commit my windows machine for a linux install.
I installed oracle jdk and android studio thinking this was the build environment needed to do this. the twrp compile forum makes no mention of what to do in this case. I must have been wrong? I don't think I need this to download and build android kernel sources and twrp source?
I'm now very doubtful about even tempting to do this. Yes, a lot of work just learning the basics of linux, let alone following the steps you give in your basic outline. I don't want to give up so easily, but the learning curve is steep.
So one just uses terminal commands to setup and download aosp and twrp git repositories and to make them? Also, is there any way to backup my device system, boot and recovery without root in linux or windows? I have used the adb pull command to backup the system directories to my windows computer, but don't know how to do it for other partitions, if possible.
I found this kernel building guide for arm and mediatek devices. would this be similar for Intel using the right repositories?
https://xdaforums.com/android/software/guide-easy-kernel-building-tutorial-t3581057
Thanks
Click to expand...
Click to collapse
 
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vampirefo

Senior Member
Apr 3, 2010
3,243
1,641
martyfender said:
vampirefo said:
This requires a lot of work.
1. Google kernel source.
2. Build bootable kernel
3. Unlock bootloader
4. Boot kernel with 5.1 ramdisk.
5. Use adb to pull boot.img and recovery.img
6. Download TWRP source modify source for intel
7. Make device tree
8. Unpack recovery.img use that kernel in your TWRP.
9. Make boot.img permissive, remove encryption repack and flash.
10. Flash TWRP.
11. Flash system mode SuperSU for root.



Sent from my LIFE X8 using Tapatalk

@vampirefo Thanks for taking the time to post this.
To familiarize myself with Linux, I created a persistent linux Mint 17.2 Mate 64 bit on a 32 gb usb thumb drive before I decide to commit my windows machine for a linux install.
I installed oracle jdk and android studio thinking this was the build environment needed to do this. the twrp compile forum makes no mention of what to do in this case. I must have been wrong? I don't think I need this to download and build android kernel sources and twrp source?
I'm now very doubtful about even tempting to do this. Yes, a lot of work just learning the basics of linux, let alone following the steps you give in your basic outline. I don't want to give up so easily, but the learning curve is steep.
So one just uses terminal commands to setup and download aosp and twrp git repositories and to make them? Also, is there any way to backup my device system, boot and recovery without root in linux or windows? I have used the adb pull command to backup the system directories to my windows computer, but don't know how to do it for other partitions, if possible.
Thanks
Click to expand...
Click to collapse
All work is done in terminal, root is required to make backups.

Sent from my LIFE X8 using Tapatalk
Click to expand...
Click to collapse
 
martyfender

martyfender

Senior Member
Mar 9, 2017
3,391
1,860
Indianapolis, IN
vampirefo said:
martyfender said:
All work is done in terminal, root is required to make backups.

Sent from my LIFE X8 using Tapatalk
Click to expand...
Click to collapse

So I could uninstall android studio. Should I also revert back to openjdk? I see it mentioned in google docs on setting up a build environment.
UPDATE: I think I have now setup properly. Reverted to openjdk 8
I downloaded this: git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.8
I found this: https://github.com/CM-CHT/android_device_intel_cherrytrail-common Would this be useful?
Thanks
Click to expand...
Click to collapse
 
Last edited:
V

vampirefo

Senior Member
Apr 3, 2010
3,243
1,641
martyfender said:
vampirefo said:
So I could uninstall android studio. Should I also revert back to openjdk? I see it mentioned in google docs on setting up a build environment.
UPDATE: I think I have now setup properly. Reverted to openjdk 8
I downloaded this: git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.8
I found this: https://github.com/CM-CHT/android_device_intel_cherrytrail-common Would this be useful?
Thanks
Click to expand...
Click to collapse
No ideal, try it and see.

Sent from my LIFE X8 using Tapatalk
Click to expand...
Click to collapse
 
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vampirefo

Senior Member
Apr 3, 2010
3,243
1,641
cjhudson101 said:
My bad, I guess I misunderstood one of your posts where you said you successfully rooted the tablet, but were withholding the method...

What if I sent you one? :)
Click to expand...
Click to collapse
You didn't misread, I rooted my son's, he doesn't live near me, he is in college. He is using my laptop that I used, so all my source files are with him.

I need tablet to start over, I already know what to do but without tablet, I can't do it.

Sent from my Life Max using Tapatalk
 
G

Giftlift

New member
Jun 6, 2017
3
0
Check your zip in the link, lets get vamp an 8a!

I just got one of these for $35, but now the closest walmart with it in stock is an hour away. Ill totaly send you one if I drive that way for any reason. Check your zip on brickseek :) ..... anyone?
slickdeals.net/f/10189248-nextbook-ares-8a-16gb-tablet-android-6-ymmv-35-bm?src=SiteSearchV2_SearchBarV2Algo1
it came with 6.0.1 on it
 
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    martyfender
    martyfender
    UPDATE: Please read the updated information at the bottom of this post, on my new recommendation to use the easier method, SuperSU systemless, to patch your original boot.img. This is in my quick start guide at the end of it, also. You still need to read my info on getting setup, also.
    https%3A%2F%2Fimg.xda-cdn.com%2Fs6ERMdH8OlQNmgQtMF_a7FOZvZ8%3D%2Fhttps%253A%252F%252Fimg.xda-cdn.com%252FI0wuTWcJ1WvHBH6wpRErdqrIqhw%253D%252Fhttps%25253A%25252F%25252Fimg.xda-cdn.com%25252Fu2csuucqiq9tAqxREzYgAWAjiVo%25253D%25252Fhttps%2525253A%2525252F%2525252Fimg.xda-cdn.com%2525252FIMaH7stgkiHwFnRUnE4ZHGYQ06I%2525253D%2525252Fhttps%252525253A%252525252F%252525252Fimg.xda-cdn.com%252525252F-6QFf1Y8PLiV7wvnGcGCx4a54N0%252525253D%252525252Fhttps%25252525253A%25252525252F%25252525252Fimg.xda-cdn.com%25252525252FaBBICzsznGyRmwF7qsHv6yhhjDs%25252525253D%25252525252Fhttps%2525252525253A%2525252525252F%2525252525252Fimg.xda-cdn.com%2525252525252FoigqsTerjvADiVVBjAuP0WUEkKU%2525252525253D%2525252525252Fhttp%252525252525253A%252525252525252F%252525252525252Fwww.nextbookusa.com%252525252525252F_products%252525252525252F161111165056-thumb.jpg

    I have started this thread as a place to post a working root solution for this tablet.

    https://www.walmart.com/ip/Nextbook...-System/122137749?variantFieldId=actual_color

     This is a great Android tablet for the price. It features an updated Intel Cherry Trail quad core 1.92 GHz processor, 1gb RAM, 16gb internal storage. and Android 6.0.1 Marshmallow.

    UPDATE: There is a newer version of the tablet with a manufacturing sticker date of September, 2017. Despite retaining the 8A model number, it has a slower, ARM processor and Android Nougat 7.1.1. Although it is quite snappy, It shows much slower benchmarks in AnTuTu and has a much smaller battery, about half the size. Also the boxes are about 2/3 the thickness of the older, 6.0.1 tablets.
    The chances of rooting it are very slim. My solution will not work for it. Fastboot mode appears to be disabled on this and one other Nougat tablet that I own. I am returning the one I tested.

    UPDATE: I now have root, a custom TWRP recovery and modified boot images for the Android 6.0.1 version of this device.

    I would like to thank @vampirefo for his TWRP and original boot images, for without his work, this would not be possible.

    PLEASE DO NOT CONTACT HIM ABOUT THIS HE WILL NOT PROVIDE ANY SUPPORT FOR IT, THAT WILL BE PROVIDED BY ME AND OTHER GENEROUS FORUM MEMBERS.

    I strongly recommend, though that you donate to him, in his signature, for all of his hard work on this, even if it is a small amount. I asked him twice about this and he never responded, so please donate to him.

    His original boot.imgs are modified to remove encryption and make the kernel permissive.
    I unpacked them and removed dm_verity to remove the failed verification message, on boot then repacked them.

    FILES ARE UP ON ANDROID FILE HOST
    https://www.androidfilehost.com/?w=files&flid=197521
    Choose the version of the tablet that you own. Go to settings, about tablet and scroll to the bottom and look at the first few numbers of the build number. For example: V1.2.0.
    Do not use this on the 1.0.8 version of the tablet or you will loose sound, wifi and maybe bluetooth. If you have this version of the tablet and can provide me a twrp, backed up, original boot.img, I can modify it to work with your tablet. You can temp boot twrp, to do this (see below). As of yet no one has provided one to me for the 1.0.8 tablet version.

    UPDATE 10/24/2017: I now have a I now have a 1.0.8 modified boot.img up on android file host:
    https://www.androidfilehost.com/?fid=962021903579487577

    Here is a twrp backup of the 1.2.0 rom, with userdata deleted to start fresh. It will boot to the Android setup screen. If you have any major, unexplained problems, I recommend starting fresh with this. It works great on either tablet version: 1.1.1 and 1.2.0.
    https://www.androidfilehost.com/?fid=673368273298970542

    UPDATE 12/15/2017: I have uploaded a pre-rooted TWRP backup of my original V1.1.1 tablet
    https://www.androidfilehost.com/?w=files&flid=235141

    TO PREPARE YOUR DEVICE:

    UPDATED 12/3/2017: I now have found a Version 2.1.5 of the tablet and have uploaded an unrooted, TWRP backed up version of it. It also contains the original recovery so do not check that box when flashing it in TWRP unless you intend to replace TWRP with the stock recovery

    https://www.androidfilehost.com/?fid=673791459329065002

    This will be long and thorough, because I see so many people who have trouble with this because they don't have their computer setup properly from the get go.

    This will help you get ready to be successful in applying this.
    First and foremost, unlocking your bootloader will delete all userdata on the tablet so you need a good backup of important files. If you backup to an external sd card, I strongly recommend also copying the files to an external source such as your computer. You can do that through mtp or remove the card and place it in an sd card adapter and insert it into an sd card reader. I did not do this, even though I knew better and my sd card was corrupted in the process, so I lost the original twrp backup of the virgin, untouched system partition.
    Secondly, if you are on windows you need the proper drivers for adb and fastboot installed on your system. Proper drivers are the number one issue I see with windows users. For this Intel device get them here:
    https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices

    Here are the steps to install adb and Intel drivers, in the proper order:

    The best way to to set up adb and fastboot in windows is to install it system wide. Here is an installer to do this that works well:
    https://xdaforums.com/showthread.php?t=2588979
    Install process for 15 sec adb:
    1. Run it (Require administrator privileges)
    2. Press Y/Yes to install ADB and Fastboot
    3. Press Y/Yes to install ADB system-wide
    4. Press N/No to skip installing Drivers
    5. 15 seconds passed - finished!
    6. Now install the Intel drivers listed above and here, again:
    https://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices


    Third, enable developer options by going to settings, about tablet, and tap on the build number seven times to enable it.

    Then go to developer options and make sure usb debugging is enabled. watch on the tablet screen for a popup dialog the approve usb debugging. check the box to always allow for this computer and hit ok.
    Now, with the proper drivers installed, adb and fastboot properly installed, You need to test that it is functioning properly. This is done with the tablet booted into Android. If you used the adb I recommended, go to my computer, C drive and open the newly created adb folder. Left click in an open area of the folder to select it. then shift right click to open a contextual menu, then select: open a command prompt here. Once the command window is open, type:
    Code: 
    adb devices
    and hit enter:
    you should see the device serial number listed. I am now doing this from linux, so it may differ,slightly:
    adb devices
    List of devices attached
    YFGV1216059870 device
    Sometimes you get starting daemon on port... and you have to type it again to see the device listed. If you don't see this, then your drivers or adb/fastboot aren't properly installed.
    If you see your device, then type:
    Code: 
     adb reboot bootloader
    and hit enter. your device should now reboot to bootloader mode. once in bootloader mode, type:
    Code: 
    fastboot devices
    enter and you device should once again be listed.
    the next step, is to unlock your bootloader. Warning: ALL OF YOUR USERDATA WILL BE DELETED, HENCE THE BACKUP CREATED EARLIER. YOU HAVE BEEN WARNED!
    It has come to my attention that this is not clear: after unlocking the bootloader, all userdata will be deleted, like doing a factory reset.
    Go into developer options and select OEM unlocking. This does not unlock your bootloader, it only enables the ability to do it from a fastboot prompt.

    Now jump to the Quick Start guide for updated instructions:

    Older, system mode method hidden, please use the instructions in the Quick Start Guide

    Now, while still booted into bootloader mode, type:
    Code: 
    fastboot flashing unlock
    and hit enter to unlock your bootloader. All data will be deleted and the tablet will be re-encrypted upon boot, without encryption option removed from the bootloader. Now type
    Code: 
    fastboot reboot
    t, to reboot the tablet and you should reboot to the android setup screen, You can set it up again if you want, but you will be deleting userdata later when you flash the modified boot.img, so keep this in mind.
    So you may want to wait to unlock until I release twrp and the boot.img, so you can continue using the tablet.
    UPDATE: The files are now live.

    To summarize, the above steps are to prepare you for the next exciting adventure to come and to realize the full potential that a rooted device offers..................
    To be continued.

    THE FILES ARE NOW ON ANDROID FILE HOST. DOWNLOAD HERE:

    https://www.androidfilehost.com/?w=files&flid=197521

    Boot or flash TWRP Recovery and flash boot.img

    These instructions are for Windows, for Linux you must type sudo before fastboot commands
    Instructions: first make sure you read the instructions above to be sure you have the proper drivers and adb and fastboot are installed and tested before proceeding. Unlock your bootloader per above instructions. WARNING! DANGER WILL ROBINSON! THIS PROCEDURE WILL DELETE ALL USERDATA ON YOUR TABLET SO BE SURE YOU HAVE A BACKUP OF ANY IMPORTANT DATA.

    First, unzip the files to a directory. I usually do it in C:\adb, and leave the SR2-SuperSU-v2.82-SYSTEMMODE.zip, zipped.

    Now, left click in that folder in an empty spot, or where ever you unzipped it and select it. Now right click and choose open a command prompt here from the contextual menu. once the command window is open type
    Code: 
    adb devices
    , hit enter, to confirm your device is listed. Now type
    Code: 
    adb reboot bootloader
    and it should reboot to bootloader mode.
    I recommend booting into twrp temp first so you can backup your original boot, recovery and system.
    now:
    Code: 
    fastboot boot Ares8A_recovery_twrp.img
    enter and it should reboot to twrp temp. Don't choose read only after it boots. Once in twrp choose backup and hit select storage and choose micro sdcard. now swipe to backup. You can later install twrp permanently if you want to. To flash permanently:
    From bootloader mode:
    Code: 
    fastboot flash recovery Ares8A_recovery_twrp.img
    UPDATE: See the the end of my updated quick start guide for updated info on a simpler method to patch your original boot.img with either systemless SuperSU or Magisk. I no longer recommend flashing my patched boot.imgs, but instructions are still provided here for historical reference and for the few who still want SuperSu in the unofficial, system mode.
    I have hidden the older method here, but is still here for those who still want system mode SuperSU:
    Now
    Code: 
    fastboot flash boot Ares8A_111_boot.img
    enter, for the 1.1.1 version, or
    Code: 
    fastboot flash boot Ares8A_120_boot.img
    enter, for the 1.2.0 version, to flash the appropriate boot.img

    For the newer 2.1.5 version of the table:
    Code: 
    fastboot flash boot unsigned-new.img
    hit the enter key, to flash.

    Next, again in bootloader mode issue:
    Code: 
    fastboot format userdata
    enter, and wait for a successful message in the command window and on the tablet. it will take a little while.
    Next
    Code: 
    fastboot format cache
    enter, wait. Now
    Code: 
    fastboot reboot
    hit enter, and the tablet should reboot to the android setup screen where you can set it up. It will take some extra time to reboot, so be patient. You may see the boot animation for awhile. This will be booted unencrypted now without root. I recommend doing a backup again in twrp before rooting.

    There has been some misunderstanding about the above. Your data is encrypted and will not be accessible it twrp, hence, the backup before you do anything with this tablet.
    You must wipe the userdata, so a new, clean data partition can be created that is unencrypted. A factory reset is not enough. You will have problems if you don't format userdata in the above step to created a decrypted data partition.

    Flashing SuperSu for root
    For the v1.1.1 and v1.2.0 tablets:
    Make sure you have the SR1-SuperSU-v2.82-SYSTEMMODE.zip on your ext sd card.

    For the newer 2.1.5 you need a systemless version of SuperSU:
    SuperSU-v2.82-201705271822.zip Get it at:
    https://s3-us-west-2.amazonaws.com/supersu/download/zip/SuperSU-v2.82-201705271822.zip Copy it to your external SD card.
    When flashed, this systemless version will also patch your boot image for sytemless mode.

    Furthermore, to install SR1-SuperSU-v2.82-SYSTEMMODE.zip, or SuperSU-v2.82-201705271822.zip, either boot twrp temp again, from bootloader mode issue:
    Code: 
    fastboot boot Ares8A_recovery_twrp.img
    , or if you already have it installed permanently and you are booted normally, issue
    Code: 
    adb reboot recovery
    enter to boot to it.
    Next hit the install button in twrp and choose SR1-SuperSU-v2.82-SYSTEMMODE.zip or SuperSU-v2.82-201705271822.zip and swipe to confirm flash. after it is complete, go back to the main menu and choose reboot system. I choose not to install the twrp app before reboot.
    Once rebooted, open the supersu app, making sure the following are selected in settings enable superuser, default access prompt or grant, enable su during boot, trust system user and enable pro, then go back and enable full content in logging. Next download a root check app to confirm root.
    congratulations you should now be rooted! Now download a desired app that requires root and test to confirm you have no problems with root.
    If you want an app that makes it easy to reboot in the various modes, I recommend Simple Reboot by Francisco Franco. It works great with this device and android version.
    I was using Easy Reboot [ROOT] by Simone Luconi with my older, ares 8 with 5.1.1 and it had worked well.
    Apparently it is not compatible with this device or rom. when I rebooted to recovery with it, I was not able to mount my external sd card and the card was corrupted on reboot. That is why I don't have a virgin, unrooted, copy of my system image now.
    Good luck!


    Here is a quick start guide for the already initiated:
    https://xdaforums.com/showpost.php?p=72970060&postcount=82

    Here is a link to my post for some apps I personally find useful:
    https://xdaforums.com/showpost.php?p=72995672&postcount=112

    Please report successes and problems on this thread, not to @vampirefo.
    Thanks
    View
    3
    martyfender
    martyfender
    How to boot into stock recovery mode

    To boot to the stock recovery through adb:
    adb reboot recovery
    You will see "no command" on the tablet.
    Hold the power button and volume up for about 4sec then release the volume up, where you should go to the stock recovery screen.

    You can also get to it without a computer. With the tablet shut down, hold the volume down power button until it boots to bootloader or fastboot mode.
    Use the volume up or down button to toggle through the options: normal boot, restart bootloader, recovery mode, reboot, power off and ftm mode. Choose recovery and use the volume up and power button as before.
    In addition you can get to the efi bootmanager by holding the volume up, power button when the device has been shutdown first.
    View
    2
    martyfender
    martyfender
    N01F3AR said:
    So which files would I need to unlock the 8a 6.0.1 marshmallow with a 3.0.4 build number? I get the basic process just not understanding which files I'll need?? TIA
    Click to expand...
    Click to collapse

    First of all adb and fastboot binaries need to be installed on your pc and the Intel drivers installed and setup properly. I usually copy the Ares8A_recovery_twrp.img to the adb/fastboot folder on the pc.
    Developer options and USB debugging need to be enabled on the tablet. In developer options on the tablet check OEM unlocking.
    Decide which root solution you will use, either Magisk or SuperSu. I highly recommend Magisk as SuperSu is no longer developed. Copy, don't unzip, either the Magisk.zip or the SuperSu.zip to either your tablets external sd card or the internal sd.
    Reboot the tablet into bootloader/fastboot mode. From the pc's adb/fastboot folder, shift, right click on an empty space to open a command prompt here. In the command window issue fastboot device and hit enter and you should see your device fastboot serial number listed if it is connected to the tablet properly. If the above is working:
    Temp boot twrp by issuing this in the fastboot prompt:

    Code: 
    fastboot boot Ares8A_recovery_twrp.img

    Hit the enter key and the device should temp boot to TWRP. I go to settings and set the date and time and language. Since it is only temp booted, these settings will have to be redone when you flash twrp permanently, later.

    Backup your device, boot.img, system and original recovery in twrp first, see the op instructions. Choose the factory reset option in twrp. Do not reboot, you must now flash Magisk or SuperSu first to patch the boot.img. Confirm in the twrp window that it successfully flashed and patched the boot.img. If you get an error, then something went wrong. If you never flashed root before, the message should state that the stock boot.img is detected.
    Follow my updated instructions in the Op to flash Magisk.zip or SuperSu.zip
    If you are using SuperSu, be sure to use the latest beta systemless version and not my unofficial system mode version. Reboot, first boot after factory reset can take some time, up to several minutes to recreate the unencrypted data partition. The device will appear to be in a boot loop. Setup Andriod once it boot to the setup screen and confirm that the Magisk Manager was also installed in apps. if not, you will need to download and install it separately.

    Follow my updated instructions in the Op to flash Magisk.zip or SuperSu.zip

    Links for installation instructions are on the above page.

    I also recommend that you flash TWRP to your device replacing the stock recovery.
    While booted into bootloader/fastboot mode on the tablet issue in the command prompt from the pc:

    Code: 
    fastboot flash recovery Ares8A_recovery_twrp.img

    hit enter and read the message to confirm that it was successful.

    Things to have on the internal SD of your tablet the stock backed up boot.img.
    copy. In other words, copy the boot.emmc.win from the twrp backup folder to your downloads folder and rename it boot.img. Second, the Magisk.zip and Magisk Manager.apk and finally the latest TWRP flashable Magisk Uninstaller.zip. I have had the external SD reader fail on 4 out of the five devices I own, so I keep the stock, backed up version in the TWRP folder on internal, deleting the stock recovery backup, recovery.emmc.win, in it so I don't again accidentally overwrite twrp by mistake if I ever want to restore the stock system. The stock system should not contain the original data partition either, as it was encrypted.

    When I update to a new version of Magisk, I never use the direct install method as it has caused many issues. I instead choose download zip only, reboot to twrp and install the zip from there.

    Again I recommend reading the info in the OP (Opening Page), especially the updated info.

    UPDATE: I now use the The Magisk module: Busybox for Android NDK as it has a much newer version of busybox in it.
    If you plan on using Adaway, go into Magisk Manager settings and click on systemless hosts, you should then see a confirmation toast. Now reboot for the module to be enabled, just like any other module installed. Make sure systemless hosts is enabled in Adaway, also. It should be on by default.

    The above instructions assume you are on a Windows PC. If you are on Linux, you must use sudo before the fastboot commands to run as root. That may be true with a Mac, also, but I am not sure, as I used to work on Macs, but have never connected Android devices to any.
    View
    2
    martyfender
    martyfender
    Geenify: How to grant permissions required by some features on non-root device?

    I am currently using Greenify on my non-rooted device and it is working very well.
    By using adb, one can grant it additional permission so it performs almost as well on an unrooted device. Here is a link for this:
    https://greenify.uservoice.com/know...o-grant-permissions-required-by-some-features
    I copied and pasted each command, one at a time, in the command prompt then hit enter, to enable each one.
    In Greenify settings, I also have aggressive doze enabled, Automated hibernation enabled, Wakeup Tracker enabled and Quick action Notification enabled.
    View
    2
    martyfender
    martyfender
    Giftlift said:
    Is this relevant? It would seem they are the same device. twitter.com/srsroot/status/846663673645010944?lang=en
    Click to expand...
    Click to collapse
    Don't try any of these one click root solutions. none work to my knowledge on android 6.01, (at least on this device) , and may install malware or pups on your host computer.
    View

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