How To Enable Fastboot On The Kindle Fire HD 8.9"
Originally Posted by freaksworth
Just flashed TWRP to my kindle fire hd and wanted to say that there is no need for a factory cable, just use
adb shell su -c "reboot recovery"
... and it boots into fastboot. Didn't find that in your threads concerning fastboot etc.
(didn't find any better thread to post)
Yes, we are aware of this, the Factory USB Cable is for the Kindle Fire HD 7" and the Kindle Fire 2, do not ever use it on the Kindle Fire HD 8.9" damage will result. Up until 1 week ago, you had to use a Factory USB Cable but recently Hascode has cracked the Bootloader allowing you to boot like any other Android.
There are several ways to enable Fastboot on the Kindle Fire HD 8.9":
Turn the Kindle Fire HD 8.9" off, plug into USB and type:
While you see <waiting for device> - turn the Kindle on, it will boot into Fastboot.
Once you are done, hold the power down for 20 seconds or type:
To exit Recovery. Now once you have TWRP on the Kindle Fire HD 7" or 2 you can enter the Recovery without a Fastboot cable by:
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