Downgrade Oneplus 9 To Android 11 Exclusive Portable

In fact, the problems were so widespread that one OnePlus community user said, “I have to say, nothing improved, no bugs were fixed — battery drain after 40% — random app crashes — screen freeze — keyboards lag over time — 60 hz usage of the phone is unusable — black out screens — nothing improved from the first 12 upgrade”.

If you do not disable updates, your OnePlus 9 will immediately download Android 12 or 13 again overnight. Go to > System > System Updates . Tap the Gear Icon in the top right corner. Toggle OFF the "Auto-download over Wi-Fi" option.

If the rollback file ends in .jar , rename it to remove the .jar extension so it ends in .zip . downgrade oneplus 9 to android 11 exclusive

Use or the built-in Google backup to save:

What is your exact (found in Settings > About Device)? In fact, the problems were so widespread that

Complete Guide: How to Downgrade OnePlus 9 to Android 11 (OxygenOS 11)

: Download the Android 11 rollback package corresponding to your specific region (IN, NA, or Europe). Local Update APK Tap the Gear Icon in the top right corner

Read the warning prompt detailing data loss, click , and select Install Now . Method B: If you are running Android 13

The OnePlus 9 series was launched with great fanfare, boasting impressive specs and Android 12 out of the box. However, not everyone was thrilled with the upgrade, and some users may have found that Android 12 didn't quite live up to their expectations. If you're one of those users who want to downgrade their OnePlus 9 to Android 11, you're in luck. In this article, we'll guide you through the process of downgrading your device, but before we begin, let's discuss the reasons behind this decision.

OxygenOS 12 and newer removed the built-in local upgrade option. Here is how to restore it: