Official Pac-Man custom firmware has now been released for Android 5.1 Lollipop. Packed with a ton of features, Pac-Man has always remained one of a favorite custom ROM. Here is how to update Galaxy S3 I747 to Android 5.1 Lollipop based Pac-Man.

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Prerequisites to update Galaxy S3 I747 to Android 5.1 Lollipop:

Backup any important datafrom your Samsung Galaxy S3SGH-I747 as a complete wipe will be required during the flashing process.Enable USB debugging option on your device:Settings>DevelopmentOptions>USB debugging.Samsung Galaxy S3 must berooted, unlocked and installed with a recovery tool likeTWRPorCWM.Your device must be charged to at least 60% of power.

Note:this tutorial is focused on AT&T Samsung Galaxy S3SGH-I747; kindly do not try this guide on other Android &Samsungdevices.

How to update Galaxy S3 I747 to Android 5.1 PAC-MAN:

Required files: downloadthe PacManAndroid 5.1Lollipopcustom firmware for GalaxyS3 I747 fromhereand save it on your computer. Also downloadGAppspackage. Do not extract the contents.

ConnectGalaxyS3 to your computer using a USB cable and copy the zip file to your phone’s SD card.Disconnect the USB cord andpower off yourGalaxy S3.Boot it into recovery mode bypressing and holdingVolume Up+Home+Powerbuttons together.Perform aNandroidbackupof your current OS:Backup>backup and restoreonClockworkModrecovery.Wipe data task: from CWM recovery menu, selectwipe data / factory resetand confirm the process. Then go on towipe cache partitionandwipedalvikcache.From recovery menu, selectinstall zip fromsdcardfollowed bychoose zip fromsdcard.Locate the PAC-MANAndroid 5.1 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 yourSGS3, boot intorecovery, selectbackup and restorethen restore your previous ROM by selecting it from the list.

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