Download and Install OxygenOS 3.1.3 for OnePlus 3 / Firmware or flash file free download (Root/Non Root Users)
Download
If you are not using the original Oxygen Recovery. View instructions for TWRP Recovery to flash OxygenOS Recovery .
4. Connect your device to PC/Mac, run following command in command prompt / terminal
For Windows: “adb sideload <filename>”
For Mac/Linux: “./adb sideload <filename>”
5. Wait a while, your phone should now update to the selected build and reboot automatically to take you into OxygenOS.
ConversionConversion EmoticonEmoticon