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

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Hashcode

Senior Recognized Developer
Sep 3, 2011
3,426
23,731
Introducing: Kindle Fire 2nd-bootloader + TWRP 2.6.3.0 for the Kindle Fire 2nd GEN

*** USE AT YOUR OWN RISK! WHILE I TRY MY BEST TO PROVIDE WORKING KERNELS/ROMS, I AM NOT RESPONSIBLE IF THIS SOFTWARE OR ANYTHING I'VE WORKED ON SUDDENLY FRIES YOUR DEVICE. ***


*** READ CAREFULLY BEFORE DOING ANYTHING ***
*** Kindle Fire 1st-gen ROMs/KERNELS are *NOT* compatible with the Kindle Fire 2. Please only flash ROMs/KERNELS that are made for the Kindle Fire 2. ***



** IF YOU HAVE QUESTIONS, RE-READ THROUGH THE THREAD FOR ANSWERS. WHEN YOU'RE ABSOLUTELY SURE NO ONE HAS ASKED YOUR QUESTION, GO AHEAD AND RE-READ THE THREAD AGAIN AND USE THE SEARCH FEATURE. THEN POST YOUR QUESTION IF YOU STILL CAN'T FIND THE ANSWER **


** WHEN MOVING FROM AMAZON OS TO CM10.1 IN TWRP: "WIPE" -> "SYSTEM" AND "FACTORY RESET" TO CLEAR SYSTEM/DATA/CACHE. YOUR APPS FROM AMAZON ICS AREN'T COMPATIBLE. IF NOT YOU'LL LOOP ON THE CM10.1 BOOT ANIMATION **


[03/27] NEW support thread for OFFICIAL CM on the Otter2 (Kindle Fire 2):
http://forum.xda-developers.com/showthread.php?t=2209995


** YOU SHOULD HAVE A WORKING FASTBOOT CABLE + FASTBOOT DRIVERS/ACCESS ON YOUR PC. **

Q: How do I know if my fastboot works?
A: Plug the cable into your device and then the computer. Reboot the Kindle. It *SHOULD* show a Fastboot screen. Once at the screen use this command on your computer:
fastboot -i 0x1949 devices
You should see something like this:
0123456789ABCDEF

Here's 1 website you can purchase a FASTBOOT adapter from (works with your normal USB cable)
http://shop.teamblackhat.info/Factory-Adapters-motadapt.htm
** I don't make any commission or fee from the sales of these devices, I just know they have them on stock most of the time and ship in a reasonable time frame unlike the Chinese variants found on ebay.

If you do NOT see this, then make sure you have the SDK installed correctly and you have the right setup for fastboot on your PC before proceeding.


*** BE SURE YOU HAVE A GOOD CHARGE ON THE DEVICE ***


INITIAL SETUP INSTRUCTIONS (1st TIME ONLY) FOR 2ND-BOOTLOADER + TeamWinRecoveryProject INSTALL:

STEP 1. Backup your stock partitions to your own HD for later if you need disaster recovery:
Code:
adb pull /dev/block/mmcblk0boot0
adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/boot
adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/recovery
adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/system # This will take a few minutes
Take those files and put them somewhere safe.


STEP 2: Download the files you will need to install 2nd-bootloader, TWRP and CM10.1:
  1. Stack override file:
    http://goo.im/devs/Hashcode/otter2/stack
  2. [12/09] otter2-freedom-boot-10.4.6.img (USED ONLY THE FIRST TIME -- .zip files will have their own boot.img's from now on):
    http://goo.im/devs/Hashcode/otter2/otter2-freedom-boot-10.4.6.img
    md5sum: 80f9b9ba80910de361463560f86f315a
  3. [09/03] TeamWin Recovery 2.6.3.0:
    http://goo.im/devs/Hashcode/otter2/otter2-twrp-2.6.3.0-recovery.img
    md5sum: a66a8cbab92fd5daaa85f6303e9cc0c3
  4. older 10.2.4 bootloader file and flash to your device via fastboot:
    http://goo.im/devs/Hashcode/otter2/otter2-u-boot-prod-10.2.4.bin
    md5sum 5b03a7b428325de8d360ec201a745498
    (You SHOULD check the MD5SUM before using fastboot -- downloads CAN be corrupted)
  5. CM-10.1/CM-10.2 for the Kindle Fire 2 (choose the latest version from):
    http://www.get.cm/?device=otter2
  6. Google Apps from: http://goo.im/gapps (choose the version: CM10.1 or CM10.2)
Place the ROM and the gapps .zip on your device in the /sdcard area


STEP 3. Install the stack override in /system:
ADB commands entered while booted up into STOCK *rooted* Amazon Kindle OS -- May need to enable ADB debugging in Settings:
[2013-08-21] edited the location where stack is placed on device due to permissions changes
Code:
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 ]

STEP 4.
Flash the OLD bootloader, new otter2-freedom-boot.img and TWRP recovery.[/B]
*DONT RE-FLASH FREEDOM-BOOT.IMG LATER AFTER FLASHING CM10.1 -- IT'S FOR STOCK AMAZON OS ONLY / FIRST INSTALL ONLY*
Code:
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-2.6.3.0-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. **

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

Once in TWRP you can Install" the CM-10.1/CM-10.2 by selecting "Install" and then browsing the device and selecting it, then "Add Zip" and select the Gapps .zip as well.

Use the slider to start the install.


FLASHING BACK TO STOCK:
** FIND THE FILES WE BACKED UP IN STEP #1 OR DOWNLOAD NEW ONES FROM THE RECOVERY THREAD HERE: **
http://forum.xda-developers.com/showthread.php?t=2035047

Once you have these files (we'll name them boot.img/recovery.img and system.img for the purpose of these instructions, but they could be different on your system).

Plug in your fastboot cable and reboot so that you see the fastboot screen and enter the following commands:
Code:
fastboot -i 0x1949 flash boot [B]boot.img[/B]
fastboot -i 0x1949 flash recovery [B]recovery.img[/B]
fastboot -i 0x1949 flash system [B]system.img[/B] # This one will take a few minutes
fastboot -i 0x1949 reboot

Enjoy

THANKS TO:
  • fattire for finding the original bootloader exploit
  • TESTERS: powerpoint45 and FMKilo
 
Last edited:

Hashcode

Senior Recognized Developer
Sep 3, 2011
3,426
23,731
Changelog: updated 2013-07-08

freedom boot.img (for use w/ stock Amazon OS + 2nd-bootloader):
  • [07/08] Updated w/ kernel from 10.4.3 release

TeamWin Recovery (TWRP) 2.6.0.0
  • [07/08] USB Vendor ID / Product ID in recovery now matches stock Amazon OS
  • [07/08] Based on 10.4.3 stock kernel
  • [07/08] Fixed recovery bootloop issue
  • [07/08] TWRP 2.6.0.0 update
 
Last edited:

Hashcode

Senior Recognized Developer
Sep 3, 2011
3,426
23,731
no chance to flash without fastboot cable? cause when i do

su
reboot bootloader

the fire boots into fastboot...does this work too?

Yes, this would work, however if something goes wrong (and it frequently can during early development) you will have NO WAY of recovering the device without a fastboot cable. So I don't recommend this method currently.

Also, these instructions are BRAND NEW, and I understand if you really want to get this setup, but please let some users w/ fastboot cables run through the instructions to make sure I didn't typo something, etc.
 

Jowyn

Member
Jun 27, 2008
33
12
Congrats and thanks again to you and all involved!
Just soldered my own factory cable this evening from a spare micro-usb cable, and I could start my kindle in fastboot mode :D
Too late now so I'll take a deeper look and try to flash tomorrow evening and give some feedback - also have to find this damn fastboot command, wouldn't shop up in my terminal?!
 

Hashcode

Senior Recognized Developer
Sep 3, 2011
3,426
23,731
Congrats and thanks again to you and all involved!
Just soldered my own factory cable this evening from a spare micro-usb cable, and I could start my kindle in fastboot mode :D
Too late now so I'll take a deeper look and try to flash tomorrow evening and give some feedback - also have to find this damn fastboot command, wouldn't shop up in my terminal?!

You will probably need to install the Android SDK to get the fastboot command.
 

idontwanttobeanoob

Senior Member
Sep 5, 2011
130
41
You will probably need to install the Android SDK to get the fastboot command.


If you follow the noob guide on rooting the kindle fire 2 it tells you to download two files, inside of either of those two files is adb and fastboot as well as all the needed drivers, if you place the files needed to do this process inside of either of those folders holding down control while right clicking inside of the folder ( making sure nothing is highlighte) select open command prompt here, that way you should be able to do this process without the sdk

Let me know how it turns out and hopefully that will save some people the headache of getting their environmental variables set up correctly ( my computer likes to play stupid )
 
Last edited:

fmkilo

Senior Member
Oct 8, 2012
289
189
Cedar Rapids, IA,USA
and nobody mentioned me.. :) come on, I thought I was listed in credits as moral support, and kid who flashed without a fbcable.. :) I know how to do it, and you could too if you just read up enough on idme and bootmodes..
No more from me, I don't want to be the one who is in trouble for bricked non factory cable owning users..
 

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  • 73
    Introducing: Kindle Fire 2nd-bootloader + TWRP 2.6.3.0 for the Kindle Fire 2nd GEN

    *** USE AT YOUR OWN RISK! WHILE I TRY MY BEST TO PROVIDE WORKING KERNELS/ROMS, I AM NOT RESPONSIBLE IF THIS SOFTWARE OR ANYTHING I'VE WORKED ON SUDDENLY FRIES YOUR DEVICE. ***


    *** READ CAREFULLY BEFORE DOING ANYTHING ***
    *** Kindle Fire 1st-gen ROMs/KERNELS are *NOT* compatible with the Kindle Fire 2. Please only flash ROMs/KERNELS that are made for the Kindle Fire 2. ***



    ** IF YOU HAVE QUESTIONS, RE-READ THROUGH THE THREAD FOR ANSWERS. WHEN YOU'RE ABSOLUTELY SURE NO ONE HAS ASKED YOUR QUESTION, GO AHEAD AND RE-READ THE THREAD AGAIN AND USE THE SEARCH FEATURE. THEN POST YOUR QUESTION IF YOU STILL CAN'T FIND THE ANSWER **


    ** WHEN MOVING FROM AMAZON OS TO CM10.1 IN TWRP: "WIPE" -> "SYSTEM" AND "FACTORY RESET" TO CLEAR SYSTEM/DATA/CACHE. YOUR APPS FROM AMAZON ICS AREN'T COMPATIBLE. IF NOT YOU'LL LOOP ON THE CM10.1 BOOT ANIMATION **


    [03/27] NEW support thread for OFFICIAL CM on the Otter2 (Kindle Fire 2):
    http://forum.xda-developers.com/showthread.php?t=2209995


    ** YOU SHOULD HAVE A WORKING FASTBOOT CABLE + FASTBOOT DRIVERS/ACCESS ON YOUR PC. **

    Q: How do I know if my fastboot works?
    A: Plug the cable into your device and then the computer. Reboot the Kindle. It *SHOULD* show a Fastboot screen. Once at the screen use this command on your computer:
    fastboot -i 0x1949 devices
    You should see something like this:
    0123456789ABCDEF

    Here's 1 website you can purchase a FASTBOOT adapter from (works with your normal USB cable)
    http://shop.teamblackhat.info/Factory-Adapters-motadapt.htm
    ** I don't make any commission or fee from the sales of these devices, I just know they have them on stock most of the time and ship in a reasonable time frame unlike the Chinese variants found on ebay.

    If you do NOT see this, then make sure you have the SDK installed correctly and you have the right setup for fastboot on your PC before proceeding.


    *** BE SURE YOU HAVE A GOOD CHARGE ON THE DEVICE ***


    INITIAL SETUP INSTRUCTIONS (1st TIME ONLY) FOR 2ND-BOOTLOADER + TeamWinRecoveryProject INSTALL:

    STEP 1. Backup your stock partitions to your own HD for later if you need disaster recovery:
    Code:
    adb pull /dev/block/mmcblk0boot0
    adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/boot
    adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/recovery
    adb pull /dev/block/platform/omap/omap_hsmmc.1/by-name/system # This will take a few minutes
    Take those files and put them somewhere safe.


    STEP 2: Download the files you will need to install 2nd-bootloader, TWRP and CM10.1:
    1. Stack override file:
      http://goo.im/devs/Hashcode/otter2/stack
    2. [12/09] otter2-freedom-boot-10.4.6.img (USED ONLY THE FIRST TIME -- .zip files will have their own boot.img's from now on):
      http://goo.im/devs/Hashcode/otter2/otter2-freedom-boot-10.4.6.img
      md5sum: 80f9b9ba80910de361463560f86f315a
    3. [09/03] TeamWin Recovery 2.6.3.0:
      http://goo.im/devs/Hashcode/otter2/otter2-twrp-2.6.3.0-recovery.img
      md5sum: a66a8cbab92fd5daaa85f6303e9cc0c3
    4. older 10.2.4 bootloader file and flash to your device via fastboot:
      http://goo.im/devs/Hashcode/otter2/otter2-u-boot-prod-10.2.4.bin
      md5sum 5b03a7b428325de8d360ec201a745498
      (You SHOULD check the MD5SUM before using fastboot -- downloads CAN be corrupted)
    5. CM-10.1/CM-10.2 for the Kindle Fire 2 (choose the latest version from):
      http://www.get.cm/?device=otter2
    6. Google Apps from: http://goo.im/gapps (choose the version: CM10.1 or CM10.2)
    Place the ROM and the gapps .zip on your device in the /sdcard area


    STEP 3. Install the stack override in /system:
    ADB commands entered while booted up into STOCK *rooted* Amazon Kindle OS -- May need to enable ADB debugging in Settings:
    [2013-08-21] edited the location where stack is placed on device due to permissions changes
    Code:
    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 ]

    STEP 4.
    Flash the OLD bootloader, new otter2-freedom-boot.img and TWRP recovery.[/B]
    *DONT RE-FLASH FREEDOM-BOOT.IMG LATER AFTER FLASHING CM10.1 -- IT'S FOR STOCK AMAZON OS ONLY / FIRST INSTALL ONLY*
    Code:
    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-2.6.3.0-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. **

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

    Once in TWRP you can Install" the CM-10.1/CM-10.2 by selecting "Install" and then browsing the device and selecting it, then "Add Zip" and select the Gapps .zip as well.

    Use the slider to start the install.


    FLASHING BACK TO STOCK:
    ** FIND THE FILES WE BACKED UP IN STEP #1 OR DOWNLOAD NEW ONES FROM THE RECOVERY THREAD HERE: **
    http://forum.xda-developers.com/showthread.php?t=2035047

    Once you have these files (we'll name them boot.img/recovery.img and system.img for the purpose of these instructions, but they could be different on your system).

    Plug in your fastboot cable and reboot so that you see the fastboot screen and enter the following commands:
    Code:
    fastboot -i 0x1949 flash boot [B]boot.img[/B]
    fastboot -i 0x1949 flash recovery [B]recovery.img[/B]
    fastboot -i 0x1949 flash system [B]system.img[/B] # This one will take a few minutes
    fastboot -i 0x1949 reboot

    Enjoy

    THANKS TO:
    • fattire for finding the original bootloader exploit
    • TESTERS: powerpoint45 and FMKilo
    23
    Changelog: updated 2013-07-08

    freedom boot.img (for use w/ stock Amazon OS + 2nd-bootloader):
    • [07/08] Updated w/ kernel from 10.4.3 release

    TeamWin Recovery (TWRP) 2.6.0.0
    • [07/08] USB Vendor ID / Product ID in recovery now matches stock Amazon OS
    • [07/08] Based on 10.4.3 stock kernel
    • [07/08] Fixed recovery bootloop issue
    • [07/08] TWRP 2.6.0.0 update
    12
    one more reserved space
    8
    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
    7
    does anyone have a mirror of the files?

    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

    :)