Thanks Meter 603
Join Date: Feb 2013
Location: New Braunfels, TX
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Technically you don't need to downgrade the os, only the bootloader. I recommend this guide: http://forum.xda-developers.com/show....php?t=2271909
A fastboot cable is not required but is recommended in case you mess up. If your device is not yet rooted you can root it with binary's root
. Turn on usb debugging under your kindles security settings and use the drivers in my signature to update the unknown devices drivers. When rooting if you use the latest version of binary's root I believe you must choose "old" as the method to root.
If you follow the tutorial I linked above for twrp and 2nd bootloader there is something I want to point out. When you follow then instructions and open the fireflash app, there should be red warning text about downgrading the bootloader, you need to make sure you check the box above/next to that warning text, somehow people miss it and the result is a red screen brick that only a fastboot cable can fix. Secondly I just recommend to put the ROM and corresponding gapps you plan to flash on the kindle ahead of time. Its just a good idea to in case you get stuck in twrp.
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My Wallpaper Fix for KF2, KFHD 7", and KFHD 8.9" is HERE
Please Read the instructions and use the debugger if you run into errors.
My own modified adb drivers for just about all kindles (includes old twrp and cm versions) HERE
Tablet UI Patch for latest CM10.1 build HERE
Please send complaints to /dev/null