Official CyanogenMod 12.1 Stable ROM has been released for the Galaxy Note 2 Sprint (L-900) by the industrious CyanogenMod team.This official CM12.1 custom ROM is based on the original AOSP Android 5.1.1 Lollipop. *The process is very simple and the update is only for the Sprint Galaxy Note 2 (L-900) model. So do check the model of your phone before applying this method and don’t try this on another android device.Check out the model number of your device from Settings > About Phone. Update Sprint Galaxy Note 2 L900 to Official Android 5.1.1 Via CM12.1 ROM
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Important: *Make sure there is at least 80% battery left on your smartphone before begin. Update Sprint Galaxy Note 2 L900 to Official Android 5.1.1 Via CM12.1 ROM Warning: rootmygalaxy.net will not be held responsible for any kind of damage occurred to your Sprint Galaxy Note 2 L-900 while following this tutorial.Do it at your own risk. Pre-Requirements:
The Sprint Galaxy Note 2 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 Sprint Galaxy Note 2 should be unlocked.
Downloads:
Download CM 12.1 Android 5.1.1 Lollipop Download Google Apps Package for Android 5.1.1 ROMs
Simple guide on How to Update Sprint Galaxy Note 2 L900 to Official Android 5.1.1 Via CM12.1 ROM
First, download both ZIP (ROM file and Gapps) files for Sprint Galaxy Note 2 on the desktop of your PC. Now Connect the phone via USB data cable to the computer and mount the USB mass storage of the phone. Transfer the downloaded Official CyanogenMod 12.1 ROM zip file to the root folder of your SD card on the Galaxy Note 2. Remember the location and Once done, disconnect the device. Now Turn OFF the device in order to boot into Recovery Mode. Go to recovery on Note 2 pressing and holding Volume up + Home + Power buttons at the same time. 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. Additionally Perform Wipe Cache Partition and wait until the process is successfully completed. Go to Advanced option to perform Wipe Dalvik Cache also. Select Wipe Dalvik Cache. Go back to the main menu of Recovery, choose Install Zip from SD card > Choose Zip from SD card. Select the CM12.1 Custom ROM zipped file which you have already transferred to the root folder of your SD card.Select the ROM .zip file by tapping the Power button. Confirm the ROM installation to initiate. Once done, now flash Google Apps on your Galaxy Note 2. (same as flashing ROM) After the installation is fully completed, go back to recovery main menu and hit reboot system First-time boot will take up to 5min, so don’t panic
DONE! You have successfully updated Sprint Galaxy Note 2 (L900) to the latest CyanogenMod 12.1 Android 5.1Lollipop stable build For confirmation go to the setting and check android and CynogenMod version.
