How to Convert OnePlus 15 from ColorOS to OxygenOS

In this guide, we will show you the steps to convert your OnePlus 15 from ColorOS to OxygenOS. The devices from this Chinese OEM boast a power-packed specs sheet with the latest Snapdragon 8 Elite Gen 5, 165Hz refresh rate, and massive 7300mAh battery. As far as the underlying OS is concerned, it ships with ColorOS 16 if you purchase the device from China or OxygenOS 16 if you have got it from any other region [IND, EU, NA, etc]. It’s no hidden secret that OxygenOS is miles ahead of ColorOS.

However, users living in China don’t have a say in that. While that is understandable, what isn’t is why users outside of China tend to import their OnePlus from China. Well, it is because the device is somewhat cheaper than the international market. But these savings come at a cost, and this cost is the bloated UI experience. Fortunately, you can now put this problem to rest, as a method now exists that allows you to easily convert your OnePlus 15 from ColorOS to OxygenOS. So without any further ado, let’s show you how this could be carried out.

How to Convert OnePlus 15 from ColorOS to OxygenOS

oneplus 15 coloros to oxygenos - 1

This conversion will wipe off all the data from your device, so please take a complete device backup. 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.

NOTE: This guide is only for the Chinese OnePlus 15 PLK110 and should not be tried on any other device/variant.
  1. Download and extract Android SDK Platform Tools on your PC.
  2. Then, enable USB Debugging & OEM Unlocking on your device.
  3. After that, unlock the bootloader of your device using our guide . If you’re having the Chinese variant [ColorOS], you’ll have to use the In-Depth Test App, which is attached in that guide. OxygenOS users don’t need to use that app, atleast not for now.
  4. Now open Command Prompt inside platform-tools and type in: adb reboot bootloader
  5. Then type the below command and verify you’re getting an ID: fastboot devices
  6. If you aren’t, then please install the Fasboot Drivers on your PC.
  7. Now download the CN2Global firmware from below and extract it. ColorOS to OxygenOS Firmware for OnePlus 15: DOWNLOAD LINK Credits: XDA Senior Member koaaN
  8. Then launch the Super_Flasher.bat file. The flashing will now start.
  9. First few files will be flashed to Fastboot Mode after which the device will boot to FastbootD.
  10. Once in FastbootD Mode, select English on your device to proceed with the flashing script. The rest of the files will now be flashed.
  11. Once done, you will be asked if you’re coming from ColorOS and want to wipe data.
  12. Since we are coming from ColorOS, select YES. Then wipe the data using the FastbootD Mode [it is compulsory].
  13. Once the data wipe is done, your device will boot to the OS. If that doesn’t happen, use the below command: fastboot reboot

Can I Relock Bootloader After Converting to OxygenOS?

Yes, you can. But it is highly recommended that you don’t do so as there’s always a chance of things going south and your device ending in a bootloop or softbricked astate. If that happens in an unlocked device, then you can easily flash the fimrware in Fastboot Mode and rectify the issue. But you wouldn’t be able to do so if your device is locked.

Apart from that, both the Fastboot and Recovery Mode will become unavailable once you relock the bootloader and you wouldn’t be able to use the Deep Testing APK to unlcok the device. Your only course of actyion is to opt for the EDL firmware flashing to get back to ColorOS and unlock again. All in all, while you can unlock the bootlaoder on your OnePlus device converted from ColorOS to Oxygen, but it is highly recommended that you don’t do so due to the aforementioned issues.

  • How I Unbricked My OnePlus Free of Cost!
  • How to Root OnePlus 15 via Magisk/KernelSU/APatch
  • Guide to Unlock Bootloader on OnePlus 15 [In-Depth Test App]
  • How to Flash EDL Firmware on OnePlus: MSM & Oppo Flash Tool
  • How to Unbrick OnePlus via EDL Cable Deep Flash
  • Guide to Boot any OnePlus Device to EDL Mode
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