OxygenOS2 years ago
How to Downgrade or Rollback Oneplus 8 Series & 9R from OxygenOS 12 to OxygenOS 11 – Step by Step Guide
Oneplus have started rolling out the first build of OxygenOS 12 for Oneplus 8, 8 Pro & 8T also Oneplus 9R got OxygenOS 12 open beta...