Update Galaxy S3 to PACMAN Android 5.1.1 Lollipop – How to

Rafia Shaikh
Posted Aug 22, 2015
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PACMAN custom firmware based on Android 5.1.1 Lollipop is now available for AT&T Samsung Galaxy S3 I747. While there is no hope of Lollipop coming to Galaxy S3, you can taste all the features and much more with this beautiful and stable custom ROM. Here are all the PACMAN Android 5.1.1 features for Samsung Galaxy S3 I747 followed by a complete guide to help you flash the custom ROM on your own smartphone.

pacman android 5.1.1

Prerequisites to flash Android 5.1.1 on Galaxy S3 I747:

  • Backup any important data from your Samsung Galaxy S3 SGH-I747 as a complete wipe will be required during the flashing process.
  • Enable USB debugging option on your device: Settings > Development Options > USB debugging.
  • Samsung Galaxy S3 must be rooted, unlocked and installed with a recovery tool like TWRP or CWM.
  • Your device must be charged to at least 60% of power.

Note: this tutorial is focused on AT&T Samsung Galaxy S3 SGH-I747; kindly do not try this guide on other Android & Samsung devices.

How to update Galaxy S3 I747 to Android 5.1.1 PACMAN:

Required files: download the PACMAN Android 5.1.1 Lollipop custom firmware for Galaxy S3 I747. and save it on your computer. Also download GApps package. Do not extract the contents.

  • Connect Galaxy S3 to your computer using a USB cable and copy the zip file to your phone’s SD card.
  • Disconnect the USB cord and power off your Galaxy S3.
  • Boot it into recovery mode by pressing and holding Volume Up + Home + Power buttons together.
  • Perform a Nandroid backup of your current OS: Backup backup and restore on ClockworkMod recovery.
  • Wipe data task: from CWM recovery menu, select wipe data / factory reset and confirm the process. Then go on to wipe cache partition and wipe dalvik cache.
  • From recovery menu, select install zip from sdcard followed by choose zip from sdcard. Locate the PACMAN Android 5.1.1 Lollipop custom firmware and confirm the flashing process.
  • Return back to main recovery menu and reboot your AT&T Samsung Galaxy S3 into the new custom ROM. First boot takes a good 5 minutes so please be patient.

How to restore: If you want to return to previous OS on your SGS3, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.

– Recommended: Fix “Root Access Possibly Lost” and “Root access missing” Error Messages on Android – How to

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