FLASHING WRONG IMAGES CAN DAMAGE YOUR DEVICE SO USE THIS APP ON YOUR OWN RISK
fire flash is an App for flashing boot and recovery partitions on both versions of Kindle Fire HD. Optionally it also installs a simple Open Recovery Script which gets executed after entering recovery mode. In script only wiping system/data/cache and installing ROMs (.zip files) are supported.
Usage: download files you want to flash (boot image, recovery image, ROM .zip files). After downloading files, select them and check appropriate options. In attached image there is an example for flashing Hashcode's bootloader + TWRP + stock ROM v8.1.4 with installed stack override on a KFHD8.9. After all files are selected and options checked as shown on the image, first tap Flash,install script button and then Reboot into recovery button. All required files can be found in Hashcode's threads.
Tomsgt made a video which shows how to use the fire flash. Thanks.
Note: more than one .zip file can be selected. To remove a file from the list, select the same file again.
-added support for system version 7.3.0 / 8.3.0:
: if current bootloader is not 7.2.3 / 8.1.4 a red warning is displayed and check box for flashing 7.2.3 / 8.1.4 bootloader is enabled.
: unless you are sure your current bootloader is not 7.3.0 / 8.3.0 bootloader 7.2.3 / 8.1.4 should probably be flashed - check the checkbox.
-works on CM10.1
-every flashed partition is read back and verified
-shows progress when flashing
-added some feedback after pressing Flash,install script button
-(hopefully) resolved problems with open recovery script