[BOOTLOADER] 2nd-Bootloader/Recovery unlock process for KFire 2 [TWRP 2.6.3.0]

mrkhigh · Mar 27, 2016

I just installed cm11 on my mother in laws kf2 yesterday.

Note: I think you have to be below 10.5 software version? (Unsure)

Your first step is to get adb and fastboot drivers working.

Then download minimal adb and fastboot (Google it)

You can test adb by typing:
adb devices

from the command prompt you get when you run with minimal adb

You can now boot into fastboot
By typing:
Adb shell su -c "reboot bootloader"

Now test fastboot by typing
Fastboot -i 0x1949 devices

If all works

Then find all the files
Hashcode mentions at the first page of this thread (I think they were around post 545)

Run the commands one by one
If you don't use the latest twrp you will not be able to install cm11 but can cm10

Note: you have to immediately flash a ROM. Twrp goes away every time you boot kindle os..

---------- Post added at 11:48 AM ---------- Previous post was at 11:47 AM ----------

This post helped me get my drivers working:

http://xdaforums.com/kindle-fire-hd...le-fire-2-question-noob-t3206666/post66052428

mrkhigh · Mar 28, 2016

parker.stephens said:
Yes I do. Check md5 as I'm not sure that when you download them they'lll be complete!

https://www.mediafire.com/folder/5oda4fual3ht3/KF2_Boot_and_Recovery

Bump just so everyone knows these files are here

pc boy · Sep 9, 2016

I managed to flash bootloader and recovery and managed to boot into recovery once, but I did not flash anything and just rebooted. now my kf2 is in bootloop and the blue logo does not show up so that I can enter recovery mode again.
Please help!!!

titziano1214 · Sep 18, 2016

acer liquid jade z bootloader

can someone tell me how to unlock the bootloader of a acer liquid jade z please I searched all over the internet but I didn't find anything

atMyOwnrisK · Oct 1, 2016

Would someone be so kind to offer new download links, goo.im website is down for good.
Thanks!!

Edited: just found the post above with different link uploads #562

atMyOwnrisK · Oct 1, 2016

mods this can be deleted. edited above.

Galaxyplayerman · Aug 21, 2017

Does this work without a fastboot cable (IE just using a regular micro USB?)

pakidermo5000 · Feb 4, 2018

mikeataol said:
==========

--- Place the TWRP backup / or the ROM and gapps .zip on your device in the /sdcard area

--- ADB commands entered while booted up into STOCK *rooted* Amazon Kindle OS -- May need to enable ADB debugging in Settings:

adb push stack /sdcard/
adb shell su -c "dd if=/sdcard/stack of=/dev/block/platform/omap/omap_hsmmc.1/by-name/system bs=6519488 seek=1"

--- Connect fastboot cable, and reboot the device so that "Fastboot" is showing

fastboot -i 0x1949 flash bootloader otter2-u-boot-prod-10.2.4.bin
fastboot -i 0x1949 flash boot otter2-freedom-boot-10.4.6.img
fastboot -i 0x1949 flash recovery otter2-twrp-2.7.1.0-recovery.img
fastboot -i 0x1949 reboot

--- If everything was done correctly you will at this point see the bootmenu with a BLUE logo during the reboot

During the blue logo screen press the power button to cycle through options and select "Recovery" to enter TWRP.

Thanks man !! You are my hero.
I could flash my Kindle Fire 2 which had the Stock ROM with version 10.5.1 following your indications. Now I have PACRom Up and running.

I will only add some links to download stuff.

How to flash a new ROM in your stock Kindle Fire 2.
I assume you have the "Minimal ADB and fastboot" ready in your computer as well as the drivers.
0- Check that when you connect the kindle in your windows computer, you see "Android Phone --> Android ADB Interface".
Is this not the case, it means your drivers are not OK. Google it.

1- you need root.

download the KingRoot app from here and install it in your kindle. KingRoot

2- reboot your kindle
3- Now you need to download the files that you will have to flash.

Find them here Freedom boot, twrp, otter2 u boot, and stack --> thanks @mrkhigh

4- Download ROM and Gapps
You can choose whatever ROM you like.
I tried LineageOS 12.1 but could not make it work. I could not go pass the wifi bug. Wifi bug .

And the corresponding Gapps. OpenGapps[/INDENT]

And now follow the process explained by @mikeataol
Boot normally
1- Boot normally your Kindle Fire 2 and copy these files in the /sdcard/ of Kindle fire. The ROM and Gapps will be copied later

Code:

adb push [U]stack [/U]/sdcard/
adb shell su -c "dd if=/sdcard/stack of=/dev/block/platform/omap/omap_hsmmc.1/by-name/system bs=6519488 seek=1"

2- Now get in fastboot mode

You only need a normal cable USB cable. If you were able to copy the files to the sdcard, it means you have a good cable. Sometimes, some cables do not work. Try another one.
This command will get you in fastboot mode

Code:

adb shell "su -c 'reboot bootloader'"

Once in fastboot mode

Now you will flash the other files that are in your computer

Code:

fastboot -i 0x1949 flash bootloader [U]otter2-u-boot-prod-10.2.4.bi[/U]n
fastboot -i 0x1949 flash boot [U]otter2-freedom-boot-10.4.6.img[/U]
fastboot -i 0x1949 flash recovery [U]otter2-twrp-2.7.0.0-recovery.img[/U] --> watch out with this one, check it is the right version

--- If everything was done correctly you will at this point see the bootmenu with a BLUE logo during the reboot

During the blue logo screen press the power button to cycle through options and select "Recovery" to enter TWRP

Once at TWRP
Wipe --> Advance Wipe and Select: WATCH out, this will delete everything you have in the /sdcard/ WE will have to copy ROM and Gapps

x Dalvik Cache
x Data
x cache
x system
x internal storage

Then --> format data

The internal memory (/sdcard/) is now empty. We have to copy the files.
Mount --> mount USB as storage

Now in the ADB window type

Code:

adb push "Name of the ROM you downloaded" /sdcard/
adb push "Name of the Gapps you downloaded" /sdcard/

Then Install

--> Select the ROM and Gapps.
And wait until it is done. (it takes some minutes)

Congratulations. You have a Kindle Fire 2 with a real Android ROM

Storm.Chaser · Dec 2, 2018

Can I send my Kindle Fire 2 to anyone to have them install a custom ROM for me?

I can't seem to get past the initial fastboot commands....

EDIT: Ive rooted the device and issued the command to reboot in fastboot mode.
So I have fastboot showing on the kindle now. Problem now is there is no driver installed for it in windows. In device manager it says otter2-prod-04.

Does anyone have a link to the correct driver so I can start issuing fastboot commands? thanks

wcarlson40 · Dec 7, 2018

Storm.Chaser said:
Can I send my Kindle Fire 2 to anyone to have them install a custom ROM for me?

I can't seem to get past the initial fastboot commands....

EDIT: Ive rooted the device and issued the command to reboot in fastboot mode.
So I have fastboot showing on the kindle now. Problem now is there is no driver installed for it in windows. In device manager it says otter2-prod-04.

Does anyone have a link to the correct driver so I can start issuing fastboot commands? thanks

Sweet! I found an old Kindle Fire 2, and can confirm pakidermo5000's post still works!

Storm.Chaser - I had the same issue with the fastboot commands. This video helped (although it's in spanish, you can still follow along): https://www.youtube.com/watch?v=73sJWh6yrsY

Storm.Chaser · Dec 7, 2018

wcarlson40 said:
Sweet! I found an old Kindle Fire 2, and can confirm pakidermo5000's post still works!

Storm.Chaser - I had the same issue with the fastboot commands. This video helped (although it's in spanish, you can still follow along): https://www.youtube.com/watch?v=73sJWh6yrsY

Thanks brother! That did the trick, now the only question remaining is will I be able to install this custom TWRP and ROM despite the fact I have Kindle fire 2 Version 10.5.1

wcarlson40 · Dec 7, 2018

Ugg, I can't find a ROM where the wifi works... The only Rom I could find was "cm-11-20141112-SNAPSHOT-M12-otter2" It runs fine, but no wifi........ I tried the link to fix the "wifi bug", but it didn't work

Does anyone have a link / download for CM 10.2?

---------- Post added at 01:50 AM ---------- Previous post was at 01:47 AM ----------

Storm.Chaser said:
Thanks brother! That did the trick, now the only question remaining is will I be able to install this custom TWRP and ROM despite the fact I have Kindle fire 2 Version 10.5.1

Yes, I have the same Kindle Fire 2 version, and it seemed to work fine. Even TWRP survives a reboot (I used the 2.7.0.0 version) . But, as I mentioned, finding the ROM's from 6 years ago is the trouble.....

wcarlson40 · Dec 8, 2018

I guess I should have kept searching/reading. Lineage OS 11 works just fine on my 6 year old Kindle Fire 2!
https://xdaforums.com/kindle-fire-hd/fire-2-development/rom-lineageos-11-unofficial-otter2-t3864996

Storm.Chaser · Dec 8, 2018

wcarlson40 said:
I guess I should have kept searching/reading. Lineage OS 11 works just fine on my 6 year old Kindle Fire 2!
https://xdaforums.com/kindle-fire-hd/fire-2-development/rom-lineageos-11-unofficial-otter2-t3864996

Okay great. I've downloaded the ROM and started on the installation process, however, I am running into a problem here with the -i usage of fastboot. Can you shed any light on this issue? Do I just need a different version of fastboot?
https://ibb.co/MnJH5C0

wcarlson40 · Dec 8, 2018

Storm.Chaser said:
Okay great. I've downloaded the ROM and started on the installation process, however, I am running into a problem here with the -i usage of fastboot. Can you shed any light on this issue? Do I just need a different version of fastboot?
https://ibb.co/MnJH5C0

Are you in fastboot mode when you run this command? (Is your kindle a black screen with large words that say FlashBoot with red and green dots?)

Storm.Chaser · Dec 8, 2018

wcarlson40 said:
Are you in fastboot mode when you run this command? (Is your kindle a black screen with large words that say FlashBoot with red and green dots?)

Yes thanks and I sorted that issue out. Turns out some later versions of fastboot did not have the capability for use with the "I" switch. So I downloaded a older version and was able to push the files to the tablet no problem.

I loaded TWRP Version 2.6.3.0 as well and did a through format / cleared all cache, etc.
However, I am running into a new problem when I go ahead and try flashing the actual ROM file. Check this out:

wcarlson40 · Dec 8, 2018

Storm.Chaser said:
Yes thanks and I sorted that issue out. Turns out some later versions of fastboot did not have the capability for use with the "I" switch. So I downloaded a older version and was able to push the files to the tablet no problem.

I loaded TWRP Version 2.6.3.0 as well and did a through format / cleared all cache, etc.
However, I am running into a new problem when I go ahead and try flashing the actual ROM file. Check this out:

It sounds like you’re almost there! This is my first root/Rom experience, so I’m not an expert, but all I can say is that it worked for me

My guess is that you need the newer TWRP (I used 2.7.0.0)

You can also check the MD5 sum on your Rom to make sure you didn’t get a corrupted download

Storm.Chaser · Dec 8, 2018

wcarlson40 said:
It sounds like you’re almost there! This is my first root/Rom experience, so I’m not an expert, but all I can say is that it worked for me

My guess is that you need the newer TWRP (I used 2.7.0.0)

You can also check the MD5 sum on your Rom to make sure you didn’t get a corrupted download

Yes I think I am close. In the mean time, I downloaded an older ROM and it worked!

However, I would like something more current. Do you have a link to where you downloaded TWRP version 2.7.0.0 from? Thx

wcarlson40 · Dec 8, 2018

Storm.Chaser said:
Yes I think I am close. In the mean time, I downloaded an older ROM and it worked!

However, I would like something more current. Do you have a link to where you downloaded TWRP version 2.7.0.0 from? Thx

I found the files in pakidermo5000's link here:

https://www.mediafire.com/folder/5oda4fual3ht3/KF2_Boot_and_Recovery

Storm.Chaser · Dec 10, 2018

wcarlson40 said:
I found the files in pakidermo5000's link here:

https://www.mediafire.com/folder/5oda4fual3ht3/KF2_Boot_and_Recovery

Thanks again! I flashed to TWRP Version 2.7.0.0 and installed the latest CM12 (Lollipop) 5.1.1. ROM. Works flawlessly, aside from a minor issue with the Wifi, had to run a script to get that working.

Otherwise, it's working perfectly, and I couldn't have done it without your help!

[BOOTLOADER] 2nd-Bootloader/Recovery unlock process for KFire 2 [TWRP 2.6.3.0]

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