How to update Samsung Galaxy S3 with Android 4.2.2 Jellybean ROM

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Now you can apply latest Android 4.2.2 ROM on your Samsung Galaxy S3. So all S3 users who are looking for some reliable and well featured custom ROM can use this custom ROM. It is built on latest Android 4.2.2 Firmware which is the latest Android version currently. Don’t think that it is accustom ROM and will do any harm to your phone. It comes from trusted sources and will not harm your device in any case. However you will have to root your S3 before applying this ROM. Rooting will end up you voiding your device’s warranty but don’t worry at all as you can anytime restore official warranty by installing some stock firmware’d ROM on same S3.

This ROM comes with plethora of features + it fixes various bugs of previous ROMs. It will improve battery life, appearance and overall features of your S3. It is stocked with all the Android 4.2 JB features.

Check: Android 4.2 Jellybean features

So this ROM will let you experience all latest software features of mobile world. With this ROM you will be able to use all the apps/games on Play Store which is a ultimate fun itself. Now let me take you to the main part.

How to update Samsung Galaxy S3 with Android 4.2.2 Jellybean ROM

I am dividing the complete procedure in 3 parts. I suggest you to read all the three parts simultaneously otherwise you will get nothing.

PART I (Pre-Requisites)
This is a custom ROM which will void your warranty (however you can easily get it back) + it comes with the lots of risks (even bricking also). So it is advised to secure your device fully before trying anything out. Please follow these pre-requisites and save your device from various kinds of threats.

PART II (Downloads and main processes)

Download these two files to computer:
Android 4.2.2 Package
GApps Package

How to boot to Recovery Mode (required in step III):
At first turn OFF your S3. Now press and hold Vol. Up + Menu buttons and while pressing both the buttons press the power button. It will boot you to recovery mode which is required in last part. Please backup your current ROM from recovery mode (you will get options in recovery menu).

STEP III (main part)
Once you have followed all the pre-requisites and have downloaded the required files on computer, you can step further with this ultimate guide. It will end up you with all new features of Android 4.2.2 on your Galaxy S3.

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