How to Flash Temasek Android 5.0.2 Custom Rom on OnePlus One

There are so many Android 5.0 Lollipop Custom ROM are available for the OnePlus one android smartphone and most of them are stable, and ready to use. If you are the Oneplusone user and want to install the Custom ROM on your device here is the guide which you can follow on your phone and update the same. In this guide we will flash the one of the most popular Temasek Android 5.0.2 Custom Rom, you can use the same guide to flash some other ROM on your phone. This ROM is based on CM-12.0 nightlies with features cherry-picked from many sources including crDroid, SlimKAT, Omni, LiquidSmooth, Carbon, Nameless, Beanstalk etc. The Guide is pretty simple and takes a few minutes to complete the installation.

Flash Temasek Android 5.0.2 Custom Rom on OnePlus One


Your warranty is void if you follow the given instruction in this guide. We the team or the developers are not responsible for bricked devices, dead SD cards. Read all the instruction very carefully and Perform everything at your own risk.


This guide is only for the Oneplus one android smartphone. Don’t try this method on any of other Android devices, It may hard brick your device. So, first confirm your phone model number in your android phone settings. To do this Go the Settings page of your device and check out the “About Device” option.


Before following the below Mention guide, It’s always recommended to follow our pre-requisites and requirement to stay safe.


Do take the Full Backup of your Android Apps, SMS, Contacts, Call Logs, Bookmarks. This one is one of the most important step that you have to follow, as we don’t want anyone losing their personal data or apps. For help on Backup and Restore check out the below mention guides.


Now you need to enable USB debugging mode. Without enabling USB debugging mode on your device you can’t start the root, Custom ROM or Unlock process.



If your device switched off during this process, it could damage or brick the device. Make sure that your Android battery is full charge or near about 50-70% battery level.

After following the above mention steps follow the below mention guide one by one to proceed with the tutorial. All the above mention steps are very important, so do follow all the steps and do exactly what is told.



Step 1. Unlock the bootloader of your OnePlus and install the TWRP recovery.

Step 2. Now download the OnePlus One Custom ROM here and move the zip file on your phone.

Step 3. You have to also install the Google Apps package on the phone. Download the Gapps package here and move the zip file to the phone.

Step 4. Now Turn off your Oneplus android and boot it in recovery mode. You can do this on your OPO by holding both the volume down and power buttons.

Step 5. Once your device in TWRP recovery mode. The first thing you want to do is go to Wipe and do a factory reset to clean your data, cache, and Dalvik. Note that you will lose all of your files so make sure everything is backed up before continuing.

Step 6. After the wipe, go to install and find the ROM zip file you copied to your device and confirm flash. This should flash the ROM to your device.

Step 7. After this Find the Gapps Zip file and Flash the same.

Step 8. After flash is complete. Clear your cache again. Reboot your phone.

Now your oneplus is running on Android 5.0.2 Custom ROM.


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Arun is Android Fan and passionate about Mobile apps. He is currently using the Galaxy S 4 & Nexus 4 . For more info you can follow him on Google+, Facebook and Twitter.