Downgrade Oneplus 9 To Android - 11 Exclusive
A warning screen will appear reminding you that this action completely wipes your storage. Confirm and tap .
This process will completely wipe your device. Backup all photos, contacts, and documents to a cloud service or external PC.
To downgrade your or 9 Pro from Android 12 back to the stable Android 11 (OxygenOS 11) , you must use a specific rollback package. This process will completely wipe your device, so a full backup is essential. 1. Essential Prerequisites downgrade oneplus 9 to android 11 exclusive
If your device is bricked or the local upgrade fails, use the . This is a powerful PC-based utility that flashes the phone in EDL (Emergency Download) Mode . How to Unbrick OnePlus 9/9 Pro/9R via MSM Download Tool
Chapter 5 — Aftermath
Downgrading your OnePlus 9 to Android 11 is a relatively straightforward process, but it does come with risks. Make sure to backup your data and follow the steps carefully to avoid any issues. If you're experiencing issues with Android 12, downgrading to Android 11 might be a good solution. However, keep in mind that you may not receive future security updates or feature enhancements.
You get back the iconic stock-plus feel, including the original camera app and system widgets that were replaced by ColorOS-style alternatives in Android 12 and 13. A warning screen will appear reminding you that
Downgrading your device is a serious operation. Failing to follow the steps correctly can lead to a bricked phone or data loss. Please review the following requirements before proceeding:
Copy all personal files, photos, and app data to an external storage or cloud service, as the phone will be factory reset. Backup all photos, contacts, and documents to a
| Issue | Probability | Workaround | |-------|-------------|-------------| | Widevine L1 → L3 | 100% | Permanent due to TAMPER flag | | Fingerprint sensor lag | 20% | Re-enroll after 3 reboots | | 5G NSA not connecting | 15% | Flash modem from CPH2179_11_C.15 | | OTA notification spam | 100% | Use NetGuard firewall to block *.oneplus.com | | Google Pay/SafetyNet fails | 100% | Install Magisk + Universal SafetyNet Fix v2.4.0 |