With the announcement and release of the Amazon Kindle Fire HD recently, most owners of the first Kindle Fire may have felt cast aside. But, with the number of Jelly Bean-based ROMs released for the first Kindle Fire, sulking over trivial things is no longer necessary.

In fact, there's a Jelly Bean-based MIUI.us ROM for your Amazon Kindle Fire. MIUI ROMs have their own home-brewed apps, like the home launcher, contacts app, messages app, and a few more. Being based on Jelly Bean, the ROM also features a smooth and fluid interface, Google Now, and other goodies you can expect from Android 4.1.1 Jelly Bean.

This MIUI v4.1 ROM is currently under development and may still carry a few bugs and issues. According to the developer who released this ROM, XDA member lithium76, you can't make screenshots yet and long-pressing on edit text boxes causes hot reboots. In a few days or so, the developer may hopefully provide fixes for these bugs.

This guide shows you how to upgrade the Kindle Fire to Android 4.1.1 Jelly Bean via MIUI v4.1 ROM.

Warning

• The instructions in this guide are intended for use with the Kindle Fire. Applying these instructions on another device or model may produce undesired outcomes.
• The information in this guide is provided for instructional and educational purposes only. There is no guarantee that these instructions will work under your specific and unique circumstances.
• Use these instructions at your own risk. We shall not hold any responsibility or liability for whatever happens to you or your device arising from your use of the info in this guide.
• Read and understand the whole guide first before actually performing the instructions.

Requirements

• An Amazon Kindle Fire with TWRP Recovery installed
  • For help, check our guide on how to install custom recovery on Kindle Fire.
• Your tablet's USB cable.
• Download the MIUI v4 2.9.7 ROM package (MIUI.us_otter_v4.1_2.9.21_Eng_Deo_ZipA_Signed_0xD34D.zip, md5sum: 8a521f5571141eceed7f9ce351d30d62)
• Make sure your tablet's battery is charged up to 75% or more to avoid interruptions during the process.
• Backup all personal data on your tablet to make sure you have a copy of your personal data (e.g., contacts, SMS, MMS, Internet settings, Wi-Fi passwords, and the like) in case the procedure in this guide erases such data.
  • For backup tips, check our guides on how to sync your data to the cloud and how to create local backups of your mobile data.

Instructions

Installing the ROM

1. Copy the MIUI v4.1 ROM package to your tablet's internal SD card.
2. Switch your tablet off and boot into TWRP Recovery. To do this, press the Power to turn the tablet on and once a triangle appears on the screen, press the Power button again to enter TWRP Recovery.
3. Make a backup of your current ROM. To create a backup, tap on Backup.
4. Go back to the main recovery menu by clicking the Home icon.
5. Select Wipe and tap on Factory reset. Wait for the process to finish.
6. Go back to the main recovery menu.
7. Select Install and navigate to the MIUI.us_otter_v4.1_2.9.7_Eng_Deo_ZipA_Signed_0xD34D.zip file. This will start installing the ROM on your tablet.
8. Once installation of the ROM is done, tap on Reboot system. This will reboot your tablet to the newly installed MIUI ROM. First boot may take 5-7 minutes.

Installing Apps from the Google Play Store

The pixel density of the ROM is set to 160 by default. Since the Google Play Store requires ROMs to have a pixel density of 200, most apps won't be compatible with your device if your ROM's density is less than that. Here's a workaround on the issue:

1. Launch Google Play Store on your tablet.
2. When prompted, create a Google account. If you already have an existing account, just login.
3. Exit the Google Play Store app.
4. Launch the Density Fix app located on your tablet's home screen.
5. Tap on Let's do this and select Yes on the next screen to reboot your tablet.
6. After the tablet reboots, the pixel density will be set to 200. With this, you will be able to install apps from the Google Play Store.

Congratulations! Your Kindle Fire is now running on Android 4.1.1 Jelly Bean via the MIUI v4.1 2.9.21 ROM.