Samsung Galaxy S4 SGH-M919 finally gets some latest Lollipop love from MoKee. This custom ROM is stable and odexed for faster and smoother performance. Packed full of tweaks and customization choices, MoKeeAndroid 5.1.1 custom firmwarebrings more features to your S4 than the AOSP. Good on battery life, smooth and mess-free OTA updates and more! Here's how to update T-Mobile Galaxy S4 to Android 5.1.1 Lollipop.

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MoKeeAndroid 5.1.1 features:

Odexed for faster performance (only in official releases, nightlies are deodexed)

Incremental updates

OTA updates – update on the fly!

Native exFAT support (Samsung devices only)

ListView animations

Calendar – with lunar and solar calenders

Bulk SMS recipients

Adjustable SMS font size

SMS sending delay

Smart dialing

Speed dialing

IP dialing

Custom carrier name

Network speed in status bar (upload and download!)

Built in timer in Apollo – determine when to stop playing music

Unique Power Saver functions!

Custom screen off animations

Lockscreen notifications

Multiuser support

Smart Lock

Prerequisites to update T-Mobile Galaxy S4 to Android 5.1.1:

Backup any important datafrom your Samsung Galaxy S4 M919as a complete wipe will be required during the flashing process.Enable USB debugging option on your device:Settings>DevelopmentOptions>USB debugging.Samsung Galaxy S4 M919must 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 Samsung Galaxy S4 M919; kindly do not try this guide on otherAndroid&Samsungdevices.

How to update T-Mobile Galaxy S4 to Android 5.1.1:

Required files: downloadthe Android 5.1.1 Lollipop custom firmware for Galaxy S4 fromhereand save it on your computer. Do not extract the contents. Also download Google Apps Package.

Here are the steps toupdate T-Mobile Galaxy S4 to Android 5.1.1 Lollipop based custom ROM.

Connect yourGalaxyS4 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: switch the phone on while pressing and holding Volume Up + Home + Power buttonssimultaneously.Perform aNandroid backupof your current OS:Backup>backup and restoreon ClockworkMod recovery.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 MoKeeAndroid 5.1.1Lollipopcustom firmware and confirm the flashing process.Return back to main recovery menu and reboot your T-Mobile GalaxyS4 M919into the new custom ROM. First boot takes a good 5 minutes so please be patient.