How to Update Samsung S2 to Android 4.2.2 Jelly Bean OS
As Samsung doesn't specifically mention the Galaxy S2 as a
device that will receive Android 4.2 Jelly bean, but the response can be
taken as the only piece of official acknowledgement from Samsung that
the Galaxy S2 hasn't been forgotten to update this device.
The Samsung Galaxy S2 was originally slated to receive Android 4.2.2
Jelly Bean until insiders and carriers both confirmed Samsung was
dropping the project around halfway through 2013. The reason why is
still unclear, although whispers indicate that it could have had to do
with problems porting over new Touch Wiz features to the older phone.
Whatever the case, once Samsung announced in September that it would be
scrapping Android 4.2.2 for phones like the Galaxy S3 and Galaxy Note 2
and instead focusing on Android 4.3 for those devices.
- 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.
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