Thanks Meter 298
Join Date: Feb 2013
Location: New Braunfels, TX
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More details on what you have done would be nice, but basically you turn your kindle off, leave it u plugged, and on the PC run "fastboot -i 0x1949 getvar product", once it says waiting for device you plug your kindle in and it should go into fastboot. If you hear windows make a noise like something connected and disconnected very fast but it doesn't enter fastboot then you need to try to install the driver in my signature for the device as it appears on windows so you can successfully run the fastboot command.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
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