In this guide, we will show you the steps to flash the latest PixelOS based on Android 15 onto your OnePlus 12R/Ace 3. While the device isn’t the most developer-friendly out there, but thankfully, it has been blessed with a bunch of custom ROMs. So if you are looking to break free from the shackles of the bloated OxygenOS/ColorOS experience and welcome abode a clean stock usage experience, then now is just the right time for that.
One of the most popular players in this domain, the PixelOS ROM, has just made its way over to the OnePlus 12R/Ace 3. Offering the latest Android 15 experience, it provides a clean stock Pixel UI with just the right amount of functionalities. So without any further ado, let’s welcome in onto our device right away.
Table of Contents
Flash PixelOS Android 15 on OnePlus 12R/Ace 3
Before starting, please take a backup of all the data on your device as the flashing will lead to format data. Droidwin and its members wouldn’t be held responsible in case of a thermonuclear war, your alarm doesn’t wake you up, or if anything happens to your device and data by performing the below steps.
- Download and install the Android SDK Platform Tools on your PC.
- Then enable USB Debugging and OEM Unlocking on your device.
- Now unlock the bootloader on your device and connect it to the PC.
- After that, flash the latest firmware on your device using our guide.
NOTE: You have to flash the firmware even if you are already on the latest one. This is needed so that both slots get populated with the latest firmware.
- Next up, download the ROM and the partition files from below:
ROM, boot, init_boot, vendor_boot, dtbo, recovery
- Transfer all these files to the platform-tools folder [rename the ROM to rom.zip]
- Now open Command Prompt inside this folder and type in the below commands:
fastboot flash boot boot.img fastboot flash init_boot init_boot.img fastboot flash vendor_boot vendor_boot.img fastboot flash dtbo dtbo.img fastboot flash recovery recovery.img
- Then reboot your device to the newly flashed recovery via the below command:
fastboot reboot recovery
- Now type in the below command to sideload the ROM file:
adb sideload rom.zip
- Once done, do Format Data/Factory Reset. Finally, select Reboot System Now.
That’s it. These were the steps to flash the latest PixelOS based on Android 15 onto your OnePlus 12R/Ace 3. Let’s now have a look at some of the frequently asked questions.
FAQ 1: How to Update PixelOS on OnePlus 12R/Ace 3
You can update the PixelOS ROM on your OnePlus 12R/Ace 3 via two different methods:
- Download and install the OTA update from the Settings menu.
- Manually download the latest ROM ZIP and then sideload it from the recovery, as shown above.
FIX 2: How to Fix Error 7 while flashing PixelOS
- First off, reboot the device to FastbootD Mode.
From Fastboot: fastboot reboot fastboot From Recovery: Advanced > Reboot to Fastboot
- Next, download the super_empty.img from here.
- Then transfer this file to the platform-tools folder.
- Now open the CMD inside this folder and type in:
fastboot wipe-super super_empty.img
- Now reboot to Recovery and sideload the ROM file.
- Finally, do Format Data and then reboot to the OS.
So on that note, we round off this guide. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution as soon as possible.
