How to roll back OnePlus 6 from Android 9 Pie Open Beta 1 to Oreo OxygenOS 5.1.11

OnePlus 6 rollback

OnePlus just released their Android Pie OTA update as Open Beta 1 update that is also available for download already. However, being a beta update, the current Android 9 update might not be a cup of tea for many OnePlus 6 users, who may seek to downgrade their OnePlus 6 to Android 8.1 Oreo.

Well, OnePlus thought about you already, and have provided a rollback build tp Android Oreo, OxygenOS 5.1.11 (the latest update for OnePlus 6 at the moment).

OnePlus 6 mobile phone update

How to downgrade OnePlus 6 from Android Pie beta to Oreo

This is for OnePlus 6 users who have updated to OnePlus Android Pie update by installing Open Beta 1 update on their device.

Follow the guide below to downgrade your OnePlus 6 from Open Beta 1 (Android Pie) to OxygenOS 5.1.11 (Android Oreo).

  1. [Optional] As this will delete everything on your device (apps, data, contacts, settings, etc.), make sure you have taken appropriate backup of important data from the device.
  2. Download the OxygenOS 5.1.11 rollback file from here.
  3. Transfer the rollback file to your OnePlus 6. [Don’t put the file inside any folder or sub-folder. It needs to be on the root of your device’s storage.]
  4. Open the Settings app on your OnePlus 6.
  5. Scroll down and go to System updates, and then tap the icon in the top right, then select local upgrade.
  6. Tap on the rollback file you transferred above.
  7. Tap on Immediately upgrade > System upgrade to 100%.
  8. Tap on the Reboot system now to restart the device and go back to Android Oreo OxygenOS 5.1.11.


Posted by
Kapil Malani

A die-hard Liverpool FC fan, Kapil is a big fan of Batman, Android and street Cricket. In that order, probably. Email: