[General Questions and Answers] mikfendt:
[REF] Installing Kindle Fire HD 7" 2nd-Bootloader + TWRP Complete Tutorial

I did not back up the files as was optional and now need these files...

Please email them to me at mikefendt@gmail.com zipped would be great

Thanks so much!!!:laugh:

Mike

PS I'm getting the red screen on boot...[Troubleshooting

1. Red screen upon reboot: You didn't check the checkbox in FireFlash to flash the Amazon OS 7.2.3 bootloader, causing the 7.3.x bootloader to crash, hence the red screen. ]

Step 2: Grabbing Files and Backing Up

Once you're rooted successfully, you need to grab the files we'll need for the installation. Go to Hashcode's thread: Kindle Fire 2nd-bootloader + TWRP for the Kindle Fire HD 7. Download ONLY two files: the TWRP recovery image, and the freedom-boot image. That's all, and transfer both of those to the root of the sdcard, now you can move on to Step 3: Installation if you wish to skip backing up.

I will go through the steps to backup. Remember that it is not mandatory that you do this; should you follow the guide very closely, you do not require backing up whatsoever. This just serves as an extraneous step for those who feel comfortable working with ADB and would like to participate in modding the device, in which case these files would come in handy in case the device is bricked. Again, it is NOT mandatory.

Connect the device to the computer through a normal USB cable, turn on ADB through settings. Open up the command prompt (CMD) on your computer: hold down the Windows key, and press R. This will open up Run, type "cmd" and hit Enter. Now, enter the following lines of code one-by-one, wait for a line to finish before going to the next one.

Code:

adb shell su -c "dd if=/dev/block/mmcblk0boot0 of=/sdcard/boot0block.img"

adb shell su -c "dd if=/dev/block/platform/omap/omap_hsmmc.1/by-name/boot of=/sdcard/stock-boot.img"

adb shell su -c "dd if=/dev/block/platform/omap/omap_hsmmc.1/by-name/recovery of=/sdcard/stock-recovery.img"

adb shell su -c "dd if=/dev/block/platform/omap/omap_hsmmc.1/by-name/system of=/sdcard/stock-system.img"

mkdir C:\KFHD7Backup

adb pull /sdcard/stock-boot.img/ [C:\KFHD7Backup]

adb pull /sdcard/stock-recovery.img/ [C:\KFHD7Backup]

adb pull /sdcard/stock-system.img/ [C:\KFHD7Backup]

Now open up the Computer folder, and in the C: drive you will find a folder called "KFHD7Backup" with all of those files that you just pulled in there. Once you're at this stage, you have finished backing up. Take that folder and put it somewhere safe, on a USB drive, or an external flash drive.

If you need to flash these to restore the device in case you have bricked it, boot into fastboot mode (if you have the fastboot cable, plug it into the device and the computer, if you don't have a fastboot cable, look at #7 above). Place the folder and the files back to the C: drive before attempting to restore (if you know how to use the cd command, feel free to change the location of the files). Once you're in fastboot, start with the first line of code to command CMD to locate the backups folder, then proceed with the second, one-at-a-time:

Code:

cd C:/KFHD7Backup

fastboot -i 0x1949 flash boot stock-boot.img

fastboot -i 0x1949 flash recovery stock-recovery.img

fastboot -i 0x1949 flash system stock-system.img

fastboot -i 0x1949 reboot

+Note: Be patient, as some of the codes take a while due to the amount of data being transferred between the device and your computer. If nothing happens after you hit Enter on a line of code or it just hangs at nothing, close the command prompt, open it up again, and retry. It might seem scary, but if there are no codes being executed in the command prompt (you'll see data transfers with kB/s and such if there's communication), it's safe to unplug the cable or close the command prompt. Feel free to reboot your computer, then plug the cable in and try again.

Also, know that these files, when flashed through fastboot, will revert your device back to the state of when these backups were made, so once you have TWRP, these files are no longer important. The backups you make in TWRP will be just as useful, and can save you both time and patience. If, however, you want to revert to a completely stock Amazon OS software for warranty purposes, or to redo this process for any reason, they will come into play because these backups retain your apps and your settings. Otherwise, use the KFHD System Restore Tool to go completely stock.

After you have backed-up (optional), and you have the two needed files on the sdcard (TWRP image and freedom-boot image, ignore the Amazon OS and the stack override files), you can move on to step three.