How to Install Android 6.0 Marshmallow on Samsung Galaxy S3 GT-I9300 With AOSP.

This is the install custom Rom tutorial of Samsung Galaxy S3 GT-I9300. In this tutorial you will find all the step with images screenshot therefore it’s very easy and safe method to install custom Rom on your Samsung Galaxy S3 GT-I9300. First you have to read my all the step then you are also able to install custom Rom on your android device without any troubles. So don’t search just download and implementing on your android device.

Pre-Requisites to Updating your Android device:- 

1.       Follow this procedure only and only Android Device with the specific model number. 

2.      Your device should be charged more than 80%. 

3.      Make sure you have all the backup of your internal and external stored files. 

4.      Backup all your important contacts number. 

5.      Backup all your important messages. 

6.      Make sure you have USB debugging mode enabled. 

7.   Don’t try to this updating process to any other Device.

8.   Your Device Must be Rooted. [How to Root Your Device]

Download Tools Requirements:- 

1.       Download Android 6.0 Marshmallow Custom ROM:- Click Here to Download

2.      Download GAPPS For Android 6.0 Marshmallow :- Click Here to Download

How to Update:- 

Follow The Detail Instruction to Installation with Images