OOS11 Latest Update to Previous Version Downgrade/Rollback OnePlus 7, 7T, 7Pro, 7TPro Without PC or TWRP
Download Rollback Package and Install without Issue
Now, download the OxygenOS 10 based on Android 10 downgrade firmware for your deivce and region from the below links. As mentioned before these are the Android 10 Open Beta OBT builds and not the Stable MP build.
Rollback Package :
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