OnePlus One
Update OnePlus One to Android 5.0.2 Lollipop via ParanoidAndroid 5.0 unofficial ROM OnePlus

Owners of OnePlus One are in for some great news, as the industrious ParanoidAndroid team has rolled out the best custom Android 5.0.2 Lollipop firmware for the flagship handset with ParanoidAndroid 5.0 Alpha 1 ROM.

As senior forum member and developer YoshiShaPow admits in his recent post on XDA, PA 5.0 Alpha 1 ROM comes in an unmodified kernel based on the original AOSPA source code on github, despite being an unofficial build in its Alpha testing stage.

According to the developer, OnePlus One users are required to flash the latest CyanogenMod 12 Nightly ROM (click to see the guide) before installing this ROM in order to ensure the base firmware compatibility with the device.

IBTimes UK reminds readers it will not be held liable for any damage to device during or after the Android 5.0.2 Lolliop firmware installation. Users are advised to proceed at their own risk.


  • The instructions given in this guide are meant for the European variant of OnePlus One only. Verify device model number by navigating to Settings > About Phone.
  • Ensure the phone has at least 80% battery charge to prevent unexpected device shutdown (due to battery drain) while installing the ROM.
  • Back up data and settings using a recommended custom recovery tool, like ClockworkMod (CWM) or TWRP, as it creates a complete image of the existing phone setup. In Recovery, choose Backup and Restore and tap Backup.
  • Verify correct USB drivers for the phone are installed on the computer (download OnePlus One USB drivers).
  • Enable USB Debugging mode via Settings > Developer Options (if running Android 4.0 or above) or Settings > Applications > Development (if running Android 2.3 or earlier).
  • Ensure that the device is rooted with CWM recovery installed and its bootloader is unlocked.
  • Make sure that CyanogenMod 12 Nightly ROM is preinstalled on the device.

Downloads required

Android 5.0.2 ParanoidAndroid 5.0 Alpha 1 ROM (Alternate Link)

Google Apps

Steps to Install Android 5.0.2 Lollipop via ParanoidAndroid 5.0 ROM on OnePlus One

Step 1 - Download Android 5.0.2 PA 5.0 custom ROM for OnePlus One on the computer.

Step 2 - Connect and mount the phone's USB mass storage on computer with USB cable.

Step 3 - Now, copy the downloaded ParanoidAndroid 5.0 ROM zip file to the root folder on the phone's SD card.

Step 4 - Power off the phone and disconnect its USB cable from computer.

Step 5 - Boot the device into Recovery Mode by pressing and holding Volume Down and Power buttons together.

Step 6 - Once the phone enters CWM Recovery, perform a full data wipe task by clicking Wipe Data/Factory Reset. Use the Volume keys to navigate between options and Power button to select an option in the Recovery Mode.

Step 7 - Perform Wipe Cache Partition and wait until the process completes.

Step 8 - Perform Wipe Dalvik Cache as well. To do this, go to 'advanced' option and then click Wipe Dalvik Cache. This will help in preventing boot loop issues or any boot ROM related errors during firmware installation.

Step 9 - Then return to the main recovery menu and choose Install Zip from SD card.

Step 10 - Click Choose Zip from SD card. Use volume keys to navigate to the PA 5.0 ROM zip file that you copied earlier to your phone's SD card and choose it by tapping the Power button. Confirm the ROM installation on next screen and the installation process will begin.

Note: Repeat step 9 and step 10 to install Google Apps (Gapps) as well.

Step 11 - Once the ROM and Gapps installation completes, go to "+++++Go Back+++++" and select Reboot System Now in the Recovery menu.

The phone will now reboot and the first boot may take about five minutes to complete. So, please be patient.

Your OnePlus One is now running the latest Android 5.0.2 Lollipop via PA 5.0 custom ROM. Go to Settings > About phone to verify the firmware version installed.

For further assistance, check out the OnePlus One running Android 5.0.2 ParanoidAndroid 5.0 ROM in the demo video below (courtesy of YouTuber, Hrishi21007):

[Source: XDA]