Revert back to stock OS in OnePlus

This comprehensive guide walks you through the process of restoring the stock Oxygen OS from any custom ROM on OnePlus 7 and newer devices. While this method may work on OnePlus 7 and earlier versions, it has been verified to work flawlessly on the OnePlus 7T.

Requirements

Before you begin, make sure you have the following:

• ADB and Fastboot - If not already installed, follow this setup guide
• Oxygen OS ROM - Download from OnePlus Support (select your device model)
• payload-dumper-go - Download from GitHub Releases
• Windows PC - This guide uses Windows commands
• USB Cable - To connect your OnePlus device

Preparation

Step 1: Organize Files

1. Create a folder named android in your C: drive (C:\android)
2. Download the Oxygen OS ROM file and place it in the android folder
3. Extract the payload-dumper-go zip file
4. Move payload-dumper-go.exe to the C:\android folder

Step 2: Extract ROM Files

1. Open PowerShell or Command Prompt and navigate to your android folder:

   1
   cd C:\android

2. Extract the ROM using payload-dumper-go:

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   .\payload-dumper-go.exe .\OnePlusXXXX_...._XXXX.zip

   (Replace OnePlusXXXX_...._XXXX.zip with your actual ROM filename)

3. Wait for the extraction to complete. You’ll see a new folder named extracted_XXXXXXXX_XXXXX

4. Navigate to the extracted folder:

   1
   cd extracted_XXXXXXXX_XXXXX

   (Replace with your actual extracted folder name)

Flashing Process

Step 1: Boot into Fastboot Mode

1. Power off your OnePlus device completely
2. Hold Volume Up + Volume Down + Power simultaneously until the fastboot menu appears
3. In your PowerShell window, verify the device is detected:

   1
   fastboot devices

   You should see your device listed with a serial number

Step 2: Flash Boot and Recovery

1. Flash the boot and recovery images:

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   fastboot flash --slot=all boot boot.img
   2
   fastboot flash --slot=all recovery recovery.img

2. Reboot into fastbootd mode:

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   fastboot reboot fastboot

   Wait a few seconds for the device to reboot into fastbootd mode.

Step 3: Complete Flash Process

1. Start by wiping the device and then run all the flashing commands in sequence. This may take several minutes:

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   fastboot -w
   2
   fastboot flash --slot=all abl abl.img
   3
   fastboot flash --slot=all aop aop.img
   4
   fastboot flash --slot=all bluetooth bluetooth.img
   5
   fastboot flash --slot=all boot boot.img
   6
   fastboot flash --slot=all cmnlib64 cmnlib64.img
   7
   fastboot flash --slot=all cmnlib cmnlib.img
   8
   fastboot flash --slot=all devcfg devcfg.img
   9
   fastboot flash --slot=all dsp dsp.img
   10
   fastboot flash --slot=all dtbo dtbo.img
   11
   fastboot flash --slot=all hyp hyp.img
   12
   fastboot flash --slot=all imagefv imagefv.img
   13
   fastboot flash --slot=all keymaster keymaster.img
   14
   fastboot flash --slot=all LOGO LOGO.img
   15
   fastboot flash --slot=all modem modem.img
   16
   fastboot flash --slot=all multiimgoem multiimgoem.img
   17
   fastboot flash --slot=all odm odm.img
   18
   fastboot flash --slot=all oem_stanvbk oem_stanvbk.img
   19
   fastboot flash --slot=all opproduct opproduct.img
   20
   fastboot flash --slot=all qupfw qupfw.img
   21
   fastboot flash --slot=all recovery recovery.img
   22
   fastboot flash --slot=all storsec storsec.img
   23
   fastboot flash --slot=all tz tz.img
   24
   fastboot flash --slot=all uefisecapp uefisecapp.img
   25
   fastboot flash --slot=all vbmeta vbmeta.img
   26
   fastboot flash --slot=all vbmeta_system vbmeta_system.img
   27
   fastboot flash --slot=all xbl_config xbl_config.img
   28
   fastboot flash --slot=all xbl xbl.img
   29
   fastboot reboot fastboot
   30
   fastboot flash --slot=all system system.img
   31
   fastboot flash --slot=all system_ext system_ext.img
   32
   fastboot flash --slot=all vendor vendor.img
   33
   fastboot flash --slot=all product product.img

Post-Flash Steps

Option 1: Reboot Device (Recommended)

If you want to keep the bootloader unlocked:

1
fastboot reboot

Your device will boot into the stock Oxygen OS with a fresh installation.

Option 2: Lock the Bootloader

If you want to restore the bootloader lock:

1. Reboot to bootloader:

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   fastboot reboot bootloader

2. Lock the bootloader:

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   fastboot oem lock

3. Follow the on-screen prompts on your device to confirm the lock

4. After the lock completes, reboot:

   1
   fastboot reboot

Troubleshooting

• Device not detected: Ensure USB debugging is enabled and try a different USB port
• Flashing errors: Make sure all image files are in the correct directory
• Slow flashing: This is normal; do not interrupt the process
• Device stuck: Hold the power button for 10 seconds to force restart

Conclusion

Congratulations! You have successfully restored the stock Oxygen OS on your OnePlus device. Your phone should now run the official Oxygen OS with a clean slate. If you encounter any issues, please check the troubleshooting section or consult the OnePlus community forums.

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