its not an adb command. it's a fastboot command... you need the fastboot drivers from the KFU for kf1.. only install the drivers from kfu nothing else.
I did not need to do this I was able to just run that command and change the boot with no is...
Thank you, I did this and i used the SR Tool, but now the device is stucked on the fastboot....
Plug up to a computer using the USB cable and type the second adb command in to a cmd window to change the boot
screw adb in twrp, we'll use twrp's terminal emulator to go to fastboot with the command idme bootmode 4
In twrp, go to advanced. then go to terminal command. then press the select folder button.
type idme bootmode 4
reboot and you're in fastb...
Download this Tool
Run it and Restore the Kindle I think its the first 2 Options you need to run. This will restore you kindle back to orignal order. Root it again, Install TWRP again, and make sure you have a rom b...
Downloaded this and ran the runme, Now im in bootloop. Screen just keeps flashing Kindle Fire.