Update Galaxy Note 2 LTE (GT-N7105) to Official Android 5.1.1 CM12.1 ROM – How To

Another CyanogenMod 12.1 Stable ROM has been released for the Galaxy Note 2 LTE (GT-N7105) by the industrious CyanogenMod team. This official CM12.1 custom ROM is based on the original AOSP Android 5.1.1 Lollipop that comes with various enhanced customization, some vanilla Android improvements as well as extra features designed by the CyanogenMod team. You may already knows that the stable releases are the best and final builds of CM 12.1 which are now available to flash on your smartphone.

If you are interested to get this custom firmware on your Galaxy Note 2 LTE then go ahead and follow the given step-by-step guide to update your Galaxy Note 2 LTE to Android 5.1.1 CM12.1 stable release.

Update Galaxy Note 2 LTE GT-N7105 to Android 5.1.1 Lollipop based CM12.1 Stable Build


The Official Stable CM12.1 ROM and instructions given in this tutorial can be used only for the Galaxy Note 2 model number GT-N7105 (international variant). Checkout the model number of your device from Settings > About Phone.


AndroidBlog will not be held responsible in case you brick the phone or any kind of damage to the Note 2 LTE during or after the installation of this Android 5.1.1 Lollipop based CM12.1 custom ROM. Proceed at your own risk.


  • The Galaxy Note 2 LTE should be rooted.
  • The latest version of a custom recovery like CWM or TWRP must be installed on your device.
  • Download and install Galaxy Note 2 USB Drivers on your PC.
  • Enable USB Debugging Mode by navigating to Settings > Developer Options.
  • Make sure that your device is charged at least about 80% before proceeding to the installation guide.
  • Take a proper backup of all your important data and settings using a recommended custom recovery.
  • The bootloader of your Galaxy Note 2 LTE should be unlocked.

Required Files:

Steps to Update Galaxy Note 2 (GT-N7105) to Stable Android 5.1.1 Lollipop based CyanogenMod 12.1 ROM:

1:- First, download Android 5.1.1 CyanogenMod 12.1 custom ROM ( and Google Apps package for Galaxy Note 2 LTE on the desktop of your PC.

2:- Connect the phone via USB data cable to the computer and mount the USB mass storage of the phone.

3:- Transfer the downloaded Official CyanogenMod 12.1 ROM zipped file to the root folder of your SD card on the Galaxy Note 2. Once done, disconnect the device.

4:- Turn OFF the device in order to boot into Recovery Mode.

5:- Turn the Note 2 ON by pressing and holding Volume up + Home + Power buttons at the same time.

6:- While the phone is now in the CWM Recovery Mode, perform a full data wipe by selecting Wipe Data/Factory Reset. You can use Volume keys for navigation and Power button for selection in the Recovery Mode.

7:- Perform Wipe Cache Partition and wait until the process is successfully completed.

8:- Go to Advanced option to perform Wipe Dalvik Cache also. Select Wipe Dalvik Cache.

Note:Wipe Dalvik Cache will help you to prevent boot loop issues and other boot ROM related errors.

9:- Go back to the main menu of Recovery, choose Install Zip from SD card > Choose Zip from SD card.

10:- Select the CM12.1 Custom ROM zipped file which you have already copied to the root folder of your SD card in Step No 3. Select the ROM .zip file by tapping the Power button. Confirm the ROM installation to initiate.

10:- Once done, repeat Step No 9 and 10 to flash Google Apps on your Galaxy Note 2.

12:- After the installation is fully completed, navigate to “+++++Go Back+++++” and choose Reboot System Now from the Recovery menu.

The Galaxy Note 2 will be rebooted and it may take about 5 minutes to boot for the first time.

That’s All! You have successfully updated Galaxy Note 2 (GT-N7105) to the latest CyanogenMod 12.1 Android 5.1 Lollipop stable build

Let us know in the comments area below if you have any trouble or question while following the above given steps.


Aamir Jamal

An Android Geek and audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff. He has written 1007 guides and other posts.

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