[Q] Lenovo Tab 2 A10-70F --Root??

[Old faithful]

i ll never use recoveries in the future because i have problem with android updates. i formated the tablet because of this. kingroot now have strategy for a10-lollipop. i ll send an email support in lenovo site hope some day, month, year i ll have an answer . thank u. i think sp flash has option for backing up tablet/partitions . i havent check this

edit: why is my nvram settings returned back to null if i do factory reset ?

Hey, I just noticed this could help you updating if you're already rooted with a custom recovery: Go to the sister thread and check Tzul's solution to your dilemma that doesn't require a full flash here and there.

Or get over here and ask him directly

---------- Post added at 00:21 ---------- Previous post was at 00:16 ----------

Hi all,
I have a Lenovo TAB2 A10-70F and unfortunately I cannot flash the stock firmware using SP Flash Tools. Here you have the long story in a short version.
My tablet updated to Lollipop 5.0.1. I rooted the tablet using Kingroot, which was successful then I replaced the the Kingroot with SuperSu using the SuperSU Me app from the Google Play. After the installation the tablet required a reboot. And then my tablet wouldn't boot anymore. It stays at the logo screen forever. I've managed to go into recovery, did a data and cache wipe, but nothing happened. Fast boot is not working as well.
After reading a lot of tutorials I proceeded to flash a KitKat Rom. Downloaded the stock rom, SP Flash Tools, USB drivers and followed the steps as described in tutorials.
SP Flash Tools seems to work OK, but the flashing process stops after the red progress bar reaches 100%. After that nothing happens. I use Windows 8.1 and the latest USB drivers.
If you guys have any idea about what is going on please let me know. I love this tablet and I don't wanna see it thrown away in the garbage.
Thanks for your time and sorry if this is a double post or it's been answered somewhere else.

What version of SP Flash are you using? And what VCOM drivers? Could be as simple as an incompatible version of these two things.

Head on to the sister thread and follow instructions there. If you need further help, it's best to hang out there instead. This thread here has basically become stale

 

[defishinsea]

Hey, I just noticed this could help you updating if you're already rooted with a custom recovery: Go to the sister thread and check Tzul's solution to your dilemma that doesn't require a full flash here and there.

Or get over here and ask him directly

---------- Post added at 00:21 ---------- Previous post was at 00:16 ----------



What version of SP Flash are you using? And what VCOM drivers? Could be as simple as an incompatible version of these two things.

Head on to the sister thread and follow instructions there. If you need further help, it's best to hang out there instead. This thread here has basically become stale

I use this version of SP Flash: SP Flash Tool v5.1516
As regarding the drivers I cannot tell you what version I am using. I know that I downloaded them from one thread on XDA.

 

[Old faithful]

I use this version of SP Flash: SP Flash Tool v5.1516
As regarding the drivers I cannot tell you what version I am using. I know that I downloaded them from one thread on XDA.

Yeah, you should update SPFT to the latest version, IIRC it's 5.1548 now. The sister thread has links to all the files you need.

 

[defishinsea]

Hey, I just noticed this could help you updating if you're already rooted with a custom recovery: Go to the sister thread and check Tzul's solution to your dilemma that doesn't require a full flash here and there.

Or get over here and ask him directly

---------- Post added at 00:21 ---------- Previous post was at 00:16 ----------



What version of SP Flash are you using? And what VCOM drivers? Could be as simple as an incompatible version of these two things.

Head on to the sister thread and follow instructions there. If you need further help, it's best to hang out there instead. This thread here has basically become stale

Solved. It was the version of SP Flash Tools I was using. Thank you all for your kindness.

 

[Old faithful]

Solved. It was the version of SP Flash Tools I was using. Thank you all for your kindness.

Hey, glad it helped

Sent from my Lenovo TAB 2 A10-70F using Tapatalk 2

 

[thejan2009]

Is there any way to unlock bootloader of this device with fastboot? I don't have access to a computer running windows, so SP Flash Tools are off the limits for me.

 

[Old faithful]

Is there any way to unlock bootloader of this device with fastboot? I don't have access to a computer running windows, so SP Flash Tools are off the limits for me.

Yes you can, once rooted (I recommend SuperSU, but you can use Kingroot, but do try to replace it with SuperSU ASAP). Check the first post of the sister thread here, paragraph 3, item 10

Sent from my Lenovo TAB 2 A10-70F using Tapatalk 2

 

[Tzul]

Is there any way to unlock bootloader of this device with fastboot? I don't have access to a computer running windows, so SP Flash Tools are off the limits for me.

The bootloader is unlocked. But if you have the old version, then it won't allow to flash most partitions via Fastboot. The new bootloader version, introduced with tablets that had Lollipop preinstalled, has better Fastboot support.
There's also a Linux version of the SPFT, by the way. To flash the new bootloader, you need SPFT, a custom recovery, or root.

 

[Old faithful]

The bootloader is unlocked. But if you have the old version, then it won't allow to flash most partitions via Fastboot. The new bootloader version, introduced with tablets that had Lollipop preinstalled, has better Fastboot support.
There's also a Linux version of the SPFT, by the way. To flash the new bootloader, you need SPFT, a custom recovery, or root.

I stand corrected - @Tzul's answer is the most technically accurate.

Beautifully said, Tzul! Wie meine Mutter immer sagt, "Man wird so alt wie eine Kuh und lernt immer noch dazu"


Sent from my Lenovo TAB 2 A10-70F using Tapatalk 2

 

[thejan2009]

The bootloader is unlocked. But if you have the old version, then it won't allow to flash most partitions via Fastboot. The new bootloader version, introduced with tablets that had Lollipop preinstalled, has better Fastboot support.
There's also a Linux version of the SPFT, by the way. To flash the new bootloader, you need SPFT, a custom recovery, or root.

Which scatter file should I use then? The tablet is fully updated to some Android 5 version, but when I received it, it was 4.4. I've just tried to flash recovery with the fishy SPFT tool, but it didn't download any data to the device. I didn't install the usb drivers as I assume they are for Windows only. Are the steps for installing custom recovery from linux-based host any different to the ones linked by @Old faithful?

 

[Tzul]

@Old faithful Nice saying!
@thejan2009 You can use any scatter file for the Tab 2 A10-70. There's one in the TWRP downloads, for example. Nothing of significance has changed in the scatter file between Kitkat and Lollipop, only project name and filename of the preloader.

Unfortunately I've never used the Linux version of SPFT myself, therefore I cannot help you with it.

 

[lion567]

The tablet is fully updated to some Android 5 version, but when I received it, it was 4.4. I've just tried to flash recovery with the fishy SPFT tool, but it didn't download any data to the device. I didn't install the usb drivers as I assume they are for Windows only. Are the steps for installing custom recovery from linux-based host any different to the ones linked by @Old faithful?

@thejan2009, you don't have to install any driver for SP FT on Linux, but you have to open access to corresponding USB VID and PID via udev (add a row to 51-android.rules which is ordinary lies in /etc/udev/rules.d/). On some Linux derivatives you should be a member of uucp or dialout group to have write access to virtual TTY. To find out if you've got access you can switch off your tablet run "dmesg | grep usb" and connect it to PC. You should get smth like this

[ 6545.938302] cdc_acm 1-11:1.1: ttyACM0: USB ACM device
[ 6548.525488] usb 1-11: USB disconnect, device number 6
[ 6555.977807] usb 1-11: new high-speed USB device number 7 using xhci_hcd
[ 6556.106960] usb 1-11: New USB device found, idVendor=0e8d, idProduct=2000
[ 6556.106963] usb 1-11: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 6556.106965] usb 1-11: Product: MT65xx Preloader
[ 6556.106967] usb 1-11: Manufacturer: MediaTek

On Ubuntu 14.x you also have to add USB VID and PID to modemmanager black list (/etc/udev/rules.d/20-mm-blacklist-mtk.rules) or disable modemmanager. Check for cdc_acm loadable kernel module after, it can gone together with modemmanager and should be restarted.

IMHO fatsboot ot even adb are more useful tools under Linux. As @Tsul already mentioned above, if you run 5.0.x ROM, you have unlocked bootloader and you can flash any partition via fastboot.
If you are comfortable with standard Linux dd command, and have rooted your tablet, you can use adb shell to do the job

shell@A10-70L:/ $ su
root@A10-70L:/ # ls -al /dev/block/platform/mtk-msdc.0/by-name/recovery                                               
lrwxrwxrwx root     root              2016-03-25 23:50 recovery -> /dev/block/mmcblk0p10
root@A10-70L:/ # grep  mmcblk0p10 /proc/partitions                                                
 179       10      16384 mmcblk0p10
root@A10-70L:/ # dd if=/storage/sdcard1/recovery.img of=/dev/platform/mtk-msdc.0/by-name/recovery  bs=1024 count=16384

udev rules also required for adb and fastboot.

 

[thejan2009]

These are actually my attempts at rooting the device. I tried once more with fastboot, it seems that tablet received the recovery img, but then it failed with "partition 'recovery' not support flash." Well whatever. I'll try this another time, but for now, thank you for the replies!

 

[lion567]

These are actually my attempts at rooting the device. I tried once more with fastboot, it seems that tablet received the recovery img, but then it failed with "partition 'recovery' not support flash." Well whatever. I'll try this another time, but for now, thank you for the replies!

It seems that you still have old KK bootloader - I've seen such OTA update (A10-70L_S000115_160119_ROW.zip) without lk.bin inside.

 

[Tzul]

@lion567 Thanks for the Linux info!

@thejan2009 That error message means you have the old "Kitkat" bootloader installed. If you want better Fastboot support, you have to use SPFT or root to flash another bootloader. Either my patched Kitkat one, or the Lollipop one. You can find both for the Tab 2 A10-70F in this archive. (Patched Kitkat bootloader: Kitkat/lk.patched.bin; Lollipop bootloader: Lollipop/lk.bin).

 

[lion567]

@ Lollipop bootloader: Lollipop/preloader_hq8752_tb_b2b_l (20150907).bin).[/QUOTE] [MENTION=5919159]Tzul, are you sure?
AFAIK preloader and bootloader are different things. In stock ROM for SPFT bootloader image file name is lk.bin not preloader_hq8752_tb_b2b_l (20150907).bin ...

 

[Tzul]

@lion567 Oops, you're right of course. In my original message, I also wrote what preloader goes along with each bootloader, but I decided to delete that, and removed the wrong part of the sentence.

 

[muh00mad]

Dear Guys,

I've bought a Lenovo TAB 2 A10-70F with preinstalled Android 5.0.1, I tried to install the recovery at the link but the SPFT status gets red and shows Download DA [something] and the timer keeps running till a message appear of action timeout.

I also tried Tzul guide at this link and the result is the same, however now my tab won't even open and when it connect to PC the preloader appear at device manager but the tab don't show anything and the SPFT can not connect to it.

my quesions are:
1) is there a way to fix the booating (i guess it got messed up)?
2) is there a way to install the TWRP without messing it again.

I'm running on windows 8.1 and the SP Flash Tool version is 5.1524.00.000.

Thanks

 

[Sparkrite]

Dear Guys,

I've bought a Lenovo TAB 2 A10-70F with preinstalled Android 5.0.1, I tried to install the recovery at the link but the SPFT status gets red and shows Download DA [something] and the timer keeps running till a message appear of action timeout.

I also tried Tzul guide at this link and the result is the same, however now my tab won't even open and when it connect to PC the preloader appear at device manager but the tab don't show anything and the SPFT can not connect to it.

my quesions are:
1) is there a way to fix the booating (i guess it got messed up)?
2) is there a way to install the TWRP without messing it again.

I'm running on windows 8.1 and the SP Flash Tool version is 5.1524.00.000.

Thanks

Hi, I just dropped back in on this thread, used to be an active thread but has been superseded by this one:-

http://forum.xda-developers.com/android/general/guide-lenovo-tab-2-a10-70-root-t3279322

All your answers can be found there.

 

[Old faithful]

Dear Guys,

I've bought a Lenovo TAB 2 A10-70F with preinstalled Android 5.0.1, I tried to install the recovery at the link but the SPFT status gets red and shows Download DA [something] and the timer keeps running till a message appear of action timeout.

I also tried Tzul guide at this link and the result is the same, however now my tab won't even open and when it connect to PC the preloader appear at device manager but the tab don't show anything and the SPFT can not connect to it.

my quesions are:
1) is there a way to fix the booating (i guess it got messed up)?
2) is there a way to install the TWRP without messing it again.

I'm running on windows 8.1 and the SP Flash Tool version is 5.1524.00.000.

Thanks

For starters you need SPFT 5.1548, although 5.1532 should also work. You may also have to remove the SPFT drivers as well using USBDeview. Finally make sure you use the same USB port and make sure power management is turned off for the USB ports as well.

Read the first post of the sister thread like was suggested before and if you need detailed instructions I've made a tutorial, I've posted a link a few days ago on that thread.

Sent from my Lenovo TAB 2 A10-70F using Tapatalk 2