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

[thosferatu]

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

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

adb shell "su -c 'reboot bootloader'"

Once in fastboot mode

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

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

i followed this till this point but now my kindle just has a black screen, anyone able to help?