OnePlus phones come in several regional variants: . Downloading the wrong rollback package for your region can brick your device. As a T-Mobile community expert warns, “always use the toolkit for YOUR device model — for they are not interchangeable. You will get a failed result EVERY TIME”.
One final recommendation: after downgrading, stay on the latest Android 11 security patch available (ending around version 11.2.10.10 for most regions). While these patches are no longer the newest available, they provide a balanced experience for daily use.
Updating to the latest Android version does not always yield a better user experience. If you are facing severe battery drain, application crashes, or simply miss the clean aesthetics of OxygenOS 11, rolling back is your best option.
In cases where the software fails entirely, the community relies on the MSM Download Tool
Download and install the official (often called the System Update Tool). Open the newly installed System Update app . Tap the Gear Icon in the top right corner. Select the rollback .zip file from your root directory.
Once the installation finishes, tap . The first boot into Android 11 can take up to 10 minutes.
: Using the MSM Tool is a more advanced process and requires careful attention. You assume full responsibility for your device.
: Look for the official OxygenOS 11 rollback zip for LE2111.