OnePlus is working with all its superpower and is fixing the recently raised OxygenOS 16 issues. But till the time things get fixed, if you are someone who is facing boot issues and other bugs after the OxygenOS 16 update, then we suggest that you downgrade till the things get better. OnePlus will fix everything, and it almost has, but it’s always better to take a step behind and hold back till you are fully satisfied with the changes. So, we will tell you how to downgrade from OxygenOS 16 to 15 in this article. So, without any further ado, let us begin.
Also Read: OnePlus OxygenOS Update Resumes: Company Says You Can Update With Confidence
Critical Steps: Make Sure You Do This Before You Downgrade from OxygenOS 16 to 15
Before you take any further steps, we want you to take care of several points. Downgrading your operating system will completely erase all data on your smartphone. So, back up your photos, contacts, and documents to a cloud service or an external PC before proceeding. Ensure your phone has at least 60% battery.
All set? Now let us brief you how you downgrade from OxygenOS 16 to 15 right here.
How To Downgrade From OxygenOS 16 to 15? Answer Is Here
Here are all the steps to hep you downgrade from OxygenOS 16 to OxygenOS 15:
Method 1: The Local Upgrade Trick (Quickest & Easiest)
If your phone is running fine but you just want to escape OxygenOS 16’s bugs, this built-in loophole is your best bet.
How Does This Step Work?
Hunt down the official OxygenOS 15 rollback `.zip` archive for your specific model from the OnePlus Community or XDA. Move this file out of your downloads and drop it straight into your internal storage’s main download folder.
Steps
- Unlock your inner developer by tapping your software Build Number 7 times.
- Head to Settings > About Device.
- Tap the OxygenOS card, hit the top-right three dots, and select Local Install.
- Pick your downloaded package, and let the system extract the old firmware.
- Hit reboot to wake up back in OxygenOS 15.
Method 2: ADB Sideloading
When the local system blocks your downgrade with an “Installation Failed” error, you need to bypass system restrictions using a PC. And hence, the second method wil take help of USB and PC plug-ins to help you know how to downgrade from OxygenOS 16 to 15.
How Does This Step Work?
This method forces the stable OxygenOS 15 framework directly onto your device through a command terminal.
Steps
- Grab your original OnePlus USB cable and connect it with computer.
- Enable USB Debugging via Developer Options.
- Open your PC’s command line, and type `adb reboot recovery`.
- On your phone screen, navigate to Apply Update via ADB.
- Finally, type `adb sideload [filename].zip` on your computer.
- Watch the progress bar hit 100%, reboot, and enjoy the older, stable OS.
Also Read: Samsung Launches One UI 9 Beta for Galaxy S26 Series Users: What’s New?
Method 3: Visit A Service Centre
If you have a OnePlus Community Centre nearby or a service guy from OnePlus who can help you out, then grabbing some suggestions is always a good idea. Moreover, not many of us are familiar with technical terms and hence, the above 2 steps might be risky, and we might end up worsening things. So, here is the better offline guide to know how to downgrade from OxygenOS 16 to 15:
How Does This Step Work?
OnePlus’ Tech support utilises proprietary, closed-source flashing software (like internal MSM service tools) that bypasses consumer-facing security blocks.
Steps
- Back up your data to the cloud.
- Visit an official OnePlus Authorised Service Centre.
- Explain that the OxygenOS 16 build is hampering your daily usage, and you require a factory-grade downgrade to OxygenOS 15.
- It is completely safe, keeps your warranty fully intact, and is usually free of charge.
In A Nutshell
That’s it from our simple yet most informative guide on how to downgrade from OxygenOS 16 to 15. Downgrading from OxygenOS 16 to OxygenOS 15 is the smartest move if recent bugs and boot issues are disrupting your daily hustle. Whether you choose the seamless route of a Local Upgrade, the technical precision of ADB Sideloading, or the foolproof safety of a OnePlus Service Centre, the goal remains the same: a stable, reliable smartphone experience. Just remember to back up your data before making the leap. Keep coming for more such informative guides.
Also Read: OnePlus Ace 7 Specs Leak: 9,000mAh Battery And 240Hz Display Revealed
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