Android 8.1 Oreo How To[Download] Official Resurrection Remix 6.0 based on Android 8.1 Oreo for your devices
Downloads OnePlusOxygenOS Open Beta 29 For OnePlus 3 and Beta 20 for OnePlus 3T | OTA Downloads available
Android 8.0 Oreo OnePlusOfficial Oxygen OS 5.0 for OnePlus 3/3T now available for download [How to install]
Android 8.0 Oreo OnePlus Stock FirmwareOnePlus updated Oxygen OS to Open Beta 26/17 based on Android 8.0 Oreo