OnePlus One has received the Android 5.0.2 Lollipop OTA update a couple of months back and most of the users have already using the trendy Lollipop on their devices. If you haven’t already installed the Android 5.0.2 Lollipop update on your OnePlus One, you can simply check it by navigating to Settings » About Phone » System Updates and check for the available updates. If you’re either rooted or on modified system, you’ll not receive any OTA updates. But don’t worry as you can simply install the OTA update manually in just a few minutes.
In this tutorial, we’ll see how to manually install Android 5.0.2 Lollipop OTA on OnePlus One running stock CM11S without losing data. We will also see how to install this update on devices running Oxygen OS without downgrading it to CM11S. So, without any further ado, let’s see how to install the Android 5.0.2 Lollipop on your OnePlus One.
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Manually flashing updates might sometimes lead to a soft brick, so be cautious while proceeding with the tutorial. Even though the practiced methods are safe and tested, there might be a chance for misfortunes. So, you alone are responsible for any consequences that might occur during the process. We shall not be held responsible for any damage to your device but we will try our best to provide assistance if you land into any trouble.
- Charge your device above 60% to make sure it doesn’t die in the middle of the process which may be fatal sometimes.
- Make a backup of everything on your device so that you can restore the files if something goes wrong. Here’s the usual checklist:
- Complete backup of your internal storage.
- Backup your Contacts, SMS, Call logs, music playlists and photos.
- Take a complete backup of your apps with data. If you don’t know how, follow our detailed guide on how to backup apps and data with Helium app.
- A nandroid backup of your device is preferable if you have a custom recovery installed. Follow this guide: How to make a nandroid backup
- If you’re on Oxygen OS, you’ll need TWRP recovery to flash the OTA file. If you haven’t installed the TWRP recovery, follow our definitive guide on how to install TWRP recovery on OnePlus One.
Install Android 5.0.2 Lollipop OTA on OnePlus One
Before we proceed, transfer the downloaded OTA file cm-12.0-YNG1TAS0YL-bacon-signed.zip to the root of the internal storage on your device. Choose the appropriate method from below based on which ROM you’re coming from.
Update from CM11S to CM12S
- The OTA update can be easily flashed from stock Cyanogen recovery. So, first boot into stock recovery using the below steps:
- Switch off your OnePlus One.
- Now press and hold the Power + Volume Down buttons simultaneously until you see the recovery mode options on your device.
- Once you see the recovery options, you can let go of the two buttons.
- In the stock recovery, click on the Apply Update option and select Choose from Internal storage.
- Navigate to the place where you have placed the “cm-12.0-YNG1TAS0YL-bacon-signed.zip”, select it and confirm flashing.
- Wait until the flashing process is complete and then navigate back to the main menu of the recovery.
- Now select the ‘wipe cache partition’ to wipe the cache. Don’t worry this won’t delete your data, it just clears the old cache so that it can rebuild again.
- Finally, hit the Reboot system now to reboot your device.
The initial boot might take some time, so sit back and relax while the device boots up.
Update from Oxygen OS to CM12S
Note: Since you’re coming from another ROM, you’ll need to make a complete wipe on your device to avoid downgrading to CM11S. So, make sure you’ve backed up everything before you follow the below procedure.
- Reboot into recovery mode using the above mentioned procedure.
- In TWRP menu, choose the Wipe option and then choose Advanced wipe. Now select Dalvik cache, system, data and cache partitions, then swipe to wipe.
- Now get back to the main menu and select the Install button.
- Navigate to the place where you have placed the “cm-12.0-YNG1TAS0YL-bacon-signed.zip”, select it and swipe to flash.
- Once the file is flashed, navigate back to main menu and select Reboot system to reboot your device.
That’s all! Reach us in the comments section below for any queries or assistance regarding the process in the tutorial. Also, do suggest any modifications or additions to this simple guide, your feedback is important to improve our content and services.
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Via Oneplus forums