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Sejal
The Owner!!. Owner
AnOtherNick
Sada Dil Sada Insan. Owner
Kish_Mish
Chain Smoker!. Owner
Dhanak
NattKhatt Si. Radio Head
FAMMIE
Kinda Confused. Super Admin
JaLaaD
Ready to Execute.. Super Admin
Amelia
LOL Super AdminTo downgrade your OnePlus 9 to Android 11 (OxygenOS 11), you must use a official . This process will completely wipe all data on your device, so a full backup is mandatory before starting. Prerequisites
: Visit the OnePlus Community forums or official support pages to download the correct OxygenOS 11 rollback zip for your region (India, North America, or Europe).
Move photos, contacts, and documents to a cloud service or a PC. Battery Charge: Ensure your phone is charged to at least 30-50%. Verify Model/Region:
(eFuses) that can hard-brick a device if you attempt to go back to older versions. How to Perform the Downgrade Oneplus 9 Pro | Downgrade to OXYGEN OS 11
This tool is for emergency use only. It wipes everything and restores the phone to exactly how it left the factory.
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