How to install Ice Cream Sandwich on your Kindle Fire

With just a bit of work you can set up Android 4.0 on your Kindle Fire, transforming the device into a powerful general-purpose tablet.

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6. Run fbmode to switch to fastboot mode:

adb shell /data/local/tmp/fbmode

7. Using ADB, reboot the Kindle Fire:

adb reboot

The meaning of this notation is that the name of the device changes from Android Composite ADB Interface to Android ADB Interface.

The Fire will simply display a logo and stay put. It's not "stuck"; rather, it's in fastboot mode, awaiting further instructions.

Install a Recovery Image

Next, you'll install a recovery image--a miniature operating system that you'll use later to flash the complete ROM. The recovery image will also come in handy for creating full backups of the device, among other things.

1. Copy the TWRP .img file into c:\kfu\software. At this writing, the latest TWRP image is named openrecovery-twrp-blaze-2.1.1.img.

2. Open a command prompt window at c:\kfu\tools and install the image:

fastboot -i 0x1949 flash recovery C:\kfu\software\openrecovery-twrp-blaze-2.1.1.img

3. Change the boot mode to Recovery:

fastboot -i 0x1949 oem idme bootmode 5001

4. Reboot into TWRP:

fastboot -i 0x1949 reboot

Install a Custom Bootloader

You are well into the process now. Next, install the FIREFIREFIRE custom bootloader:

1. Take the FIREFIREFIRE Zip file and place it (still zipped) into c:\kfu\software. At this writing, the latest filename is called

2. Copy FIREFIREFIRE into the Kindle Fire's /sdcard directory:

adb push C:\kfu\software\ /sdcard/

3. On the Kindle Fire, press the Install button. Navigate to /sdcard if needed (you should already be there by default), and select

4. Swipe to confirm. You should get a success message:

5. Back up the stock OS so you can roll back to it at any time. In the root TWRP menu, select Backup, modify the options if you like (the defaults are fine), and swipe to confirm. Backing up will take a while, which is one of the reasons why starting the process with a full battery is so important.

Flash the Ice Cream Sandwich ROM

You're almost there! Now you just need to copy the ROM and flash it. As noted at the outset, we used AOKP in our test runs, but different ROMs may have different flashing procedures. Read the documentation for the ROM of your choice.

1. Place the .zip files containing the ROM image and Google Apps into c:\kfu\software.

2. Push the ROM and Google Apps onto the device:

adb push C:\kfu\software\ /sdcard/ adb push C:\kfu\software\ /sdcard/

3. In TWRP, select Wipe > Factory Reset. This will remove all existing files from the data and cache partitions, but it won't affect the /sdcard directory, which contains media files.

4. In TWRP, select Install. Navigate to the ROM .zip file that you placed on the device, tap it, and swipe to confirm. This will take a few moments:

5. Once that is done, tap the Back button in the upper right corner, and repeat the process with the Google Apps .zip file.

6. Tap Reboot System in the lower right corner, and boot into your brand-new Android 4.0 experience! If you wish, you can now remove the ROM and Google Apps .zip files from your device.

You should have a fully functioning Android tablet in your hands, so play around with it and let us know what you think. If you run into any problems during installation, share them in the comments below so that the community can pitch in and help you solve them. Good luck!

This story, "How to install Ice Cream Sandwich on your Kindle Fire" was originally published by PCWorld.

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