Source: Samsung

Owners deprived of the official Android 4.2.2 Jelly Bean on their Samsung Galaxy S2 GT-I9100 can now get the update via manually flashing the firmware. The firmware features Android 4.2.2 Jelly Bean goodies such as Google Now, Project Butter and Daydream with special focus on speed and stability.

Paranoid Android ROM

Paranoid Android custom ROM is one of biggest names in the ROM scene and it focuses on speed, stability and close-to-AOSP feel. Certain features like PIE navigation and HALO are added to default Android OS goodies.

Warning: Paranoid Android ROM is a custom made firmware. Manually flashing it may damage your device and we are not liable for any possible problem which could occur. Read, understand and follow the instructions to prevent damaging your device. Do this at your own risk.

Requirements:

- Flash this custom ROM to the Samsung Galaxy S2 GT-I9100 only.

- Create a backup of all personal information, settings and data files on your device. Do not use the Samsung Kies to create backup files for your Galaxy S2.

- Make sure that the battery life is at least 50 per cent.

- Root the device and install a Clockwork Mod custom recovery.

- Enable USB debugging mode on the device. Go to "Settings > Application > Development > USB debugging."

- Download the Paranoid Android 4.2.2 Jelly Bean firmware and the Google Apps package to your computer.

Flashing Instructions:

1. Connect the Samsung Galaxy S2 GT-I9100 to your computer using a USB cable.

2. Copy both the Paranoid Android custom firmware and the Google Apps package you have downloaded earlier and paste them to the SD card of your phone. Do not extract any of the zip files.

3. Disconnect the Galaxy S2 and turn it off.

4. Reboot into recovery mode by pressing and holding the Volume up, Home and Power keys at the same time till you see the Samsung logo.

5. Inside the recovery mode, create a Nandroid backup of the current ROM. Select "backup and restore > backup." The ROM is saved to the SD card which you can restore anytime.

6. Now perform a full wipe on the device. Select "wipe data/factory reset" and "wipe cache partition" then go to "advanced > wipe Dalvik cache."

7. Install the Paranoid Android custom ROM by selecting "install zip from SD card > choose zip from SD card > choose the firmware you have copied earlier > confirm installation." Apple the same with the Google Apps package.

8. Once the installation has been completed, go back to the main menu then select "reboot system now."

9. Your Galaxy S2 will reboot and may take up to five minutes to load the home screen.

Congratulations! Paranoid Android custom ROM is now running your device with Android 4.2.2 Jelly Bean OS featuring all the original goodies and extra from the custom firmware.

For any comments and issues, send your feedback to Android Advices original thread.