Android 6.0 Marshmallow update schedule for Samsung, Lenovo, Motorola, OnePlus and others
Android 6.0 Marshmallow updateAndroid via Twitter

OnePlus 2, despite being a flagship smartphone, has still not received Android Marshmallow, which was announced in October 2015. The company had announced that the Android v6.0 update would be made available to the device in the first quarter of 2016.

Read more: Android Marshmallow release schedule for OnePlus 2 revealed

In January, OnePlus reportedky said the Android Marshmallow beta-testing had commenced for OnePlus 2, but since then, there is no news from the company on when the public version will be released to the device.

For those OnePlus 2 owners who are tired of waiting for the official update, we have good news. XDA Developer Forum's prominent software programmer Temasek has released the Android Marshmallow-based CyanogenMod CM13 series custom ROM to the 2015 flagship smartphone.

Prerequisites [Things to remember before installing Custom ROM]:

  • This new CyanogenMod CM13 [unofficial] Android 6.0 Marshmallow custom ROM has to be installed only on OnePlus 2 models; if tried on other devices, it might brick them [To check your device model: Go to Settings >> About phone >> Model Number]
  • Make sure the device is rooted (Bootloader unlocked) before going forward. [How to unlock Bootloader on OnePlus 2]
  • Though installing custom ROM improves the device's performance and UI experiences, it makes the company warranty void and it will no longer be liable to provide updates in future [users can restore warranty by flashing the device with stock-ROM].
  • Installation of custom ROM requires clearing of memory in the smartphone. So make sure to back all the data by installing Clockwork Mod (CWM) Recovery/ TWRP.
  • Make sure you have installed USB drivers on the PC, or else the device will not be recognised by the computer.
  • Make sure your device has more than 80 percent battery, or else there is a chance of the smartphone getting temporarily bricked if the installation process is interrupted mid-way.

[Disclaimer: This procedure is very technical and should be performed by a person with sound knowledge of rooting (or manual software installation) Android devices. If the step-by-step installation process is not followed properly, there are chances of the smartphone getting bricked or being permanently irreparable. International Business Times India cannot be held responsible for any damage or claims from readers if the procedure does not yield the required results or if the smartphone is bricked. Hence, users are advised to proceed with caution.]

Tutorial: Step-by-step installation procedure of Temasek's CyanogenMod CM13 [unofficial] Android 6.0 Marshmallow custom ROM model via TWRP recovery method:

Step 1: Download Temasek's CyanogenMod CM13 [unofficial] Android 6.0 Marshmallow custom ROM and Google Apps on to your PC.

[Note: downloadable file links are provided at the bottom]

Step 2: Connect OnePlus 2 to PC via USB cord.

Step 3: Place Android Marshmallow custom ROM zip file and the Google Apps .zip file into the phone's storage memory. [Note: Users are advised to paste the .zip file in the storage root folder, not in any other folder.]

[Note: Before users' begin installing the custom software, be sure that the device must have rooted and has installed ClockworkMod Recovery/TWRP tool.]

Step 4: Turn off the device and disconnect from the PC.

Step 5: Perform the regular Recovery Mode sortie by press holding 'Volume (Down)' and 'Power' buttons.

Step 6: After entering the RECOVERY mode, clear the phone memory, by selecting 'wipe data/factory reset'

[Note: use 'Volume' keys to navigate and 'Power' button to select options, while operating under Recovery Mode]

Step 7: Clear the cache memory by choosing 'wipe cache partition'

Step 8: Navigate back to ClockworkMod recovery, and select 'advanced' and tap 'wipe dalvik cache' [Note: This step is optional, but many recommend this procedure so that user will not face boot loops or any other errors in the middle of custom ROM installation]

Step 9: Return to the main recovery screen and then tap 'install zip from SD card'

Step 10: Tap 'choose zip from sdcard' and go to Android M ROM .zip file in SD card and enter the installation process. Repeat the same procedure to install Google Apps [Note: use 'Volume' keys to navigate and 'Power' button to select options]

Step 11: Once done with the installation process, navigate to '+++++Go Back+++++' and re-start the device by opting 'reboot system now' seen in the recovery menu.

Now, your device (OnePlus 2) will take 10 to 12 minutes to complete the booting process.

Users then head to 'Settings' >> select 'About phone' to confirm the installation of Temasek's CyanogenMod CM13 [unofficial] Android 6.0 Marshmallow custom ROM.

Downloadable files:

Temasek's CyanogenMod CM13 [unofficial] Android 6.0 Marshmallow custom ROM: HERE

Google Apps: HERE

[Credits: XDA Developer Forum & Temasek]