OTA files are used to downgrade or upgrade android version of Oneplus phone. If you are facing frp locking issues on your Oneplus Android 15 phone, then, you can use below OTA files to easily downgrade the android version to bypass the frp lock account. For rolling back to previous android version 14.0, you just have to match your device (Software Version and My Region) code and then, download the file and install it manually without any PC for downgrading Oneplus OxygenOS 15.0 to OxygenOS 14.0.
Check Software Version Details
-Before going for downloading and installing the OTA Files, we need check out our device (Software Version) details.
-Dial code from your device *#6776#.
-You will be displayed (Software Version) Screen.
-From there, note down (Version No) and (My Region).
-In below image, version no is = CPH2581 and My Region No is = XEU000. We have to download the relevant OTA File by matching with Version no and Region.
-We are showing you below details about how to read your (Region No).
-XEU0000 means your device is on the EU build
-X00IN00 means your device is on the IN build
-X00US00 means your device is on the NA build
-1EP0000 means your device is on the GLO build
Downgrade Oneplus OxygenOS 15.0 to OxygenOS 14 (Android 14):
-Firstly, go to your device > Settings > About Device > Version. Check out your device software version.
-In below illustrated image, you can see, the software version is (CPH2447) things while downloading the rollback OTA File of OxygenOS 14 from below of this post.
–Download the correct Oneplus OTA Android 14 files from the end of this post by matching with your device (Model Number + Region Code).
-After downloading process is done. Copy and paste the downloaded file to your Oneplus Phone. You can also download OTA Files to your phone directly on strong WiFi connection.
Install Oneplus OTA Android 14 Files to Rollback:
-Go to Oneplus Phone Settings Menu.
-Tap to “About Device” option.
-After that, tap “Version” and then tap quickly 7 times on (Version Number), this will enable the developer mode on your phone and you will be displayed a prompt window of (You are now a developer).
Clear Data (Software Update):
-Go back on (Settings) menu. Bring up top notification bar by swiping it down and turn off WiFi connection.
-Afterwards, from settings page, tap > Apps > App Management.
-Then, hit over the “3 dots” from top corner and choose “Show System”.
-Search and go to “Software Updates” application.
-From there, hit on > Storage usage > Clear Data > Delete. This will remove any pending update files and will not cause any conflict during the installation of the OTA Files.
-Go back to (Settings Menu), after that, to “About Device”.
-From there, tap on (Oxygen OS 15.0) from top or tap to your device model number.
Install Downloaded OTA Files:
-Go to “3 dots” icon from top corner and then, choose the “Local Install” option. Let’s navigate to the downloaded Oneplus OTA files from your phone directory.
-Finally, click to “My Data is backed up” option.
Note: You must back up your device data before rolling back to android 14, otherwise, you will lose your all data.
-Once the rolling back to android 14 process is completed, just tap “Restart Now” option.
| Note: If you have NA build region, then, you will have to download and install this (OTA File Oneplus Update Apk) application on your phone and install it directly. After that, > Choose icon from top corner > Give your downloaded OTA Files path > then select the “Restart” after rolling back is done. |
Download OnePlus OTA Android 14 Files (OxygenOS 14.0)
These below OTA Files is for downgrading your Oneplus phone android 15 to Android 14. You can use these files to rollback to previous (Android 14) versions and OxygenOS 14.0.
We have already mentioned country region code, such as (IN,NA,EU,GLO) and software version number, such as (CPHXXX/NEXXX/OPDXXX). You have to match these things for downloading correct file.
OnePlus 12
OnePlus 12R
- OnePlus 12R (IN: CPH2585)
- OnePlus 12R (NA: CPH2611)
- OnePlus 12R (EU: CPH2609)
- OnePlus 12R (GLO: CPH2609)
- OnePlus 12R (IN Customized Version: CPH2585)
- OnePlus 12R (NA Customized Version: CPH2611).
- OnePlus 12R (EU Customized Version: CPH2609)
- OnePlus 12R (GLO Customized Version: CPH2609)
OnePlus 11R
OnePlus 10T (5G)
OnePlus 10 PRO (5G)
- OnePlus 10 Pro 5G (IN: NE2211)
- OnePlus 10 Pro 5G (GLO: NE2213)
- OnePlus 10 Pro 5G (EU: NE2213)
- OnePlus 10 Pro 5G (NA: NE2215 )
OnePlus 10R
OnePlus Pad
OnePlus Pad 2
- OnePlus Pad 2 (IN: OPD2403)
OnePlus Pad 2 (EU: OPD24) - OnePlus Pad 2 (GLO: OPD2403)
- OnePlus Pad2 (NA: OPD2403)
OnePlus Nord CE4
Oneplus Nord CE4 (IN: CPH2613)
OnePlus Nord CE4 Lite
- OnePlus Nord CE4 Lite (IN: CPH2619)
- OnePlus Nord CE4 Lite (EU: CPH2621)
- OnePlus Nord CE4 Lite (GLO: CPH2621)
OnePlus Nord CE 3 Lite (5G)
- OnePlus Nord CE 3 Lite 5G(IN: CPH2467)
- OnePlus Nord CE 3 Lite 5G(EU: CPH2465)
- OnePlus Nord CE 3 Lite 5G(GLO: CPH2465)
OnePlus Nord 3
OnePlus Nord CE3
OnePlus Nord CE3 5G (IN: CPH2569)
FAQs About Oneplus Downgrading
What is Software Version and Why do i need to check this for downloading OTA File?
You must match the OTA Files with your device software version. You have to match the version like, CPHXX, OPXXX, NEXX etc.
What is Region and how do i check this?
The Region code is can be checked by dialing the code (*#6776#). From next displayed screen, check (My Region).
How do i download correct Oneplus OxygenOS 14.0 OTA files to downgrade?
We have list of OxygenOS 14.0 OTA Files with the mentioned of (Version No & Region). You just match your device model, version, region and download it directly to your phone or into your PC.
My (Local Install) options is not being displayed after tapping 3 dots icon?
You need to enable the (Developer Mode) first. For this, we have mentioned steps already in the beginning of this post.
Conclusion
We simply checked our device version no and my region code. After that, downloaded correct OTA File Android 14 (OxygenOS 14.0). Then, past the file into our device phone storage. After that, enabled the developer mode and then, install the OTA Files into phone directly by going to (Settings > System & Update > About device).







