How To Update AT&T Galaxy S3 SGH-I747 To Android 4.2.2 | CM 10.1 M2 Rom

Update AT&T Galaxy S3 SGH-I747 To Android 4.2.2

How To Update AT&T Galaxy S3 SGH-I747 To Android 4.2.2 | CM 10.1 M2 Rom

To feature the latest Android Jelly Bean 4.2.2 on your AT&T Galaxy S3 SGH-I747, the CyanogenMod Team has now launched it Milestone 2 version of CM10.1 Rom. This version is inclusive of all the latest features of Android Jelly Bean 4.2.2 with a lot of customizing options. Just follow the simple steps given below to install CM 10.1 M2 Rom on your AT&T Galaxy S3 SGH-I747.

Before You Proceed–>>

  • This tutorial is strictly intended for Samsung AT&T  Galaxy S3 with model number SGH-I747. Using this tutorial on any other device or any other variant of Samsung AT&T  Galaxy S3 may brick your device.
  • Before you proceed make sure that your device is rooted and you have a recovery image like ClockworkMod recovery installed on your phone.
  • Ensure that you have USB drivers for your device installed on your PC. If you don’t then click here.
  • Enable USB Debugging mode. Go to Options > Applications > Development > USB Debugging.
  • Backup all your personal information on your device.
    Use AppBakto backup all your apps.
    Use SMS Backup and Restoreto backup messages.
    You can backup your contacts using gmail .
  • Charge your device battery with atleast 85% of power.

How To Update AT&T Galaxy S3 SGH-I747 To Android 4.2.2 | CM 10.1 M2 Rom

  1. Initially you need to download the Android Jelly Bean 4.2.2 CM 10.1 M2 Rom file and save the zip file to a convenient folder on your PC.
  2. Now download Google Apps and save it to a convenient folder as well.
  3. Connect your device to your PC via USB cable.
  4. Now copy the file to your phone’s SD card. It is recommended that you copy the file in the root folder of your SD card.
  5. Now turn off your phone and unplug the USB cable and boot your phone into Recovery mode.
  6. You can boot your device in recovery mode by pressing and holding together Volume Up ‘ +’Home’+ ‘ Power ‘ buttons and when you see the recovery mode screen, release these buttons.
    Use volume keys to navigate through menu and Power key to select an option while you are in recovery mode.
  7. In ClockworkMod Recovery Mode select ‘ Wipe data/Factory reset and confirm on the next screen by pressing power button.
  8. Then select ‘ Flash ZIP From SD Card ‘ and then select Choose ZIP From SD Card and browse to the file that you copied to your device’s SD card in step 4.
  9.  Select the file and confirm by pressing power button. The installation will start.
  10. Once the installation is finished, install the google apps by following step 8.
  11. When you finish installing google apps, select Go back and select Reboot system now.
  12. Now your device will boot with the whole new Look and feel of Jelly Bean 4.2.2.

That’s it!! You have successfully updated your AT&T Galaxy S3 SGH-I747 to Android Jelly Bean 4.2.2 via CM 10.1 M2 Custom Rom!

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About Acquin Dmello

Acquin is a Computer Engineering student, web developer, SEO learner and a dedicated Blogger. He specializes in Programming Web Applications and loves tweaking with Smartphones. Follow him on Twitter.