One of the best performance-oriented custom ROMs, Gamer ROM is based on Android 5.1.1 Lollipop. If you are a user who is always looking out for the best performance and avoid usual customization and fancy options, this one is for you. Based on AOSP Android, this Lollipop custom ROM focuses on giving you an unbeatable fast and smooth experience.

There's another reason to try out this custom firmware as not many Lollipop based ROMs have been released for Samsung Galaxy S4 I337. Following these steps you will be able to flash GamerROM Android 5.1.1 Lollipop on Samsung Galaxy S4 model I337.

Remember, this is NOT an official Android 5.1.1 release from AT&T. It is expected we will soon see the official update coming but there are still no confirmed dates. So why wait when you can get the stock Android 5.1.1 feel with fast performance right now?

GamerROM Android 5.1.1 Lollipop custom ROM features:

Fast UINew DesignNew Browser powered by Google Chrome browserNew LauncherSend Text Messages etc with Google Messenger and morePure android v5.1.1 SDK 22

Before you flash GamerROM Android 5.1.1, check to:

Backup any important datafrom your Samsung Galaxy S4 SGH-i337 as a complete wipe will be required during the flashing process.Enable USB debugging option on your device:Settings>DevelopmentOptions>USB debugging.Samsung Galaxy S4 i337 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 S4 I337; kindly do not try this guide on other Android &Samsungdevices.

Update Galaxy S4 i337 toGamerROM Android 5.1.1 custom ROM:

Required files:

Downloadthe GamerROM Android 5.1.1 Custom ROMfor Galaxy S4

Once you download and save the zip file on your computer, here are the steps to proceed:

ConnectGalaxyS4 to your computer using a USB cable and copy the zip file to your phone’s SD card.Disconnect the USB cord andpower off your Galaxy S4.Boot it into recovery mode bypressing and holdingVolume Up+Home+Powerbuttons together.Wipe data task: from CWM recovery menu, selectwipe data / factory resetand confirm the process.From recovery menu, selectinstall zip from sdcardfollowed bychoose zip from sdcard.Locate the GamerROM Android 5.1.1 ROMand confirm the flashing process.Return back to main recovery menu and reboot your GalaxyS4 I337 into the new custom ROM. First boot takes a good 5 minutes so please be patient.Ta da!

Don't forget to comment if you are happy with this performance-focused Lollipop ROM.

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