AT&T Samsung Galaxy S3 SGH-I747 Smartphone comes with pre-installed Android OS, v4.0 (Ice Cream Sandwich) Firmware so if you're owner of AT&T Samsung Galaxy S3 SGH-I747 and running an old Android Firmware v.4.0 (Ice Cream Sandwich) than you can Download and Manually Install Latest Android 4.1.2 Jelly Bean Custom ROM Update based on CyanogenMod 10 (CM10). Android 4.1.2 Jelly Bean is officially available for AT&T Samsung Galaxy S3 SGH-I747 Smartphone, users just need to have ClockworkMod 10 (CM10) Recovery installed in order to Install and Update Custom ROM Firmware from Old Android Firmware v.4.0 (Ice Cream Sandwich) to Latest Android v.4.1.2 (Jelly Bean) On Samsung Galaxy S3 SGH-I747.
- Before you start the procedure you need to fully charge your Samsung Galaxy S3 SGH-I747 battery and it should be 80-85% charged.
- You will also need to enable USB debugging mode which helps you to connect your Android phone via PC.
- Your phone should be factory unlocked.
- Your phone should be rooted and have ClockworkMod Recovery installed. (If not, Click here).
Related Topics: Android, Android 4.1.2, ATT, CyanogenMod 10, Google, Hacking, Jailbreak, Jellybean, Mobile, Root Android, Root Android 4.1.2 Jelly Bean, Samsung, Samsung Galaxy, Samsung Galaxy S 3, Samsung Galaxy S III, Smartphones