Downgrade Oneplus 9 To Android 11 [new] Now
Once the installation bar reaches 100%, your phone will prompt you to restart. Tap the button.
On Android 12, the standard "Local Install" option is often hidden. You may need to download and install the official OnePlus Local Update APK Prepare the Rollback File:
You are trying to downgrade from Android 13 or OxygenOS 13.1 directly to Android 11. Fix: You must first downgrade to Android 12 (OxygenOS 12) using an intermediate rollback package, then downgrade to Android 11. OnePlus blocks direct major version downgrades.
This indicates a mismatch between your phone hardware variant and the downloaded firmware file. Double-check your model number and re-download the correct regional file package.
Move the file to the of your phone's internal storage (outside all folders). 2. Install the "Local Update" Tool Downgrade Oneplus 9 To Android 11
A warning will appear stating this will reset the device. Tap Install Now
If your bootloader is locked, you must unlock it. This involves enabling "OEM Unlocking" in Developer Options, booting into Fastboot mode, and running the command fastboot oem unlock . This wipes the device.
: Moving to an older version of Android requires a factory reset. Use cloud services or a computer to save your photos, contacts, and documents.
[Stable] OxygenOS 14 is rolling out for the OnePlus 9R (IN ONLY) Once the installation bar reaches 100%, your phone
Before you begin, make sure you:
As of 2025, Android 11 is technically outdated. You will miss out on security patches newer than February 2024 (depending on your final build). However, for many, the and performance of Android 11 on the OnePlus 9 outweigh the theoretical security risks—especially if you avoid downloading suspicious APKs.
If official links are down, check the latest community fixes on forums like Reddit or YouTube for mirrored workaround links .
Download the official (often referred to as the System Update app stub). Trusted download links can be found widely across the OnePlus Community forums. You may need to download and install the
What is your (e.g., LE2111, LE2113, LE2115)? What error message or screen are you currently seeing?
The OnePlus 9 series was launched with great fanfare, touting impressive specs, a sleek design, and the latest Android 12 operating system. However, not everyone may be thrilled with the new features and changes brought about by Android 12. Some users may prefer the familiarity and stability of Android 11, or perhaps their device is experiencing issues with the newer OS. Whatever the reason, downgrading your OnePlus 9 to Android 11 can seem like a daunting task. Fear not, dear readers, as we'll walk you through the process step-by-step.
The most reliable resource for downgrading your Go to product viewer dialog for this item.
Downgrading a OnePlus 9 from a newer Android build back to Android 11 is a technical process that many users consider when they experience instability, app incompatibilities, or a preference for the older UI and performance. This essay explains why people downgrade, the risks and prerequisites, the general steps involved, and best practices to minimize data loss or device damage.