Update T-Mobile Note 4 N910T to Android 5.1 Lollipop with CM12.1

Ever since Samsung rolled out official Android 5.0.1 Lollipop firmware for Galaxy Note 4, users have been complaining about battery drain, lags and over heating. This is reason you along with hundreds of other Note 4 owners are searching for stable and clean custom ROM based on Android 5.1 Lollipop for your phone.

CM12.1 Android 5.1 for T Mobile Note 4 N910T

Well, you should be thankful your Team CyanogenMod for making CM12.1 Android 5.1 Lollipop custom ROM for your T Mobile Galaxy Note 4 SM-N910T. Follow the detailed instructions posted below to flash it T Mobile version of famous Note 4 phablet.


  • Make sure your Galaxy Note 4 N910T is at least 66% or charged.
  • Ensure that you have complete backup of all your important data.
  • Make sure USB debugging is enabled on your smartphone. [If not, enable from Setting –> Developer Options]
  • Download Samsung Note 4 USB Drivers and install them on your computer.

Files Required

The CM12.1 ROM mentioned in this post belong to its respective developer. We are just covering tutorial to help you in its installation which is well-written and very easy to understand. However if you damage or brick your phone, AndroidsDNA.com cannot be held responsible.

How to Install CM12.1 Android 5.1 Lollipop ROM on T-Mobile Galaxy Note N910T

Step 1: Download the custom ROM and GAPPS. For easy browsing, place both the downloaded zip files on desktop of your Computer.

Step 2: Connect your T Mobile Galaxy Note 4 SM-N910T to your computer to transfer the download zip files to your phone SD card. [Make sure latest Samsung drivers are installed, otherwise your PC won’t recognize your phone]

Step 3: Turn Off your phone and boot it to recovery mode. [You can’t use touch in recovery mode, so use Volume Up and Down buttons for navigation and Power button for selection]

Step 4: In recovery mode, first tap on “wipe data factory reset” option to perform a factory reset. Once this is completed, go to advanced options and select “wipe the cache” followed by “dalvik cache” options to clear the cache.

Step 5: Go back to main recovery menu and select “Install zip from sd card” followed by “choose zip from SD card” and select the ROM zip file you have transferred to SD card in Step 1. Once ROM flashing is completed, repeat the same step for GAPPS.

Step 6: Repeat the above step for Google Apps (GAPPS) installation.

Step 7: Once the installation is completed, go back to main recovery menu by selecting “+++++Go Back+++++” option  and reboot your phone by choosing “reboot system now” option from main menu. For the first time, your phone might take little more time than it usually takes, so don’t be panic as it is normal and will be only for 1st time.

Alright, so finally you have updated your Mobile Galaxy Note 4 SM-N910T to Android 5.1 Lollipop with the help of CM12.1 custom ROM.