Boot into fastboot mode. You can do this on your OnePlus One by holding down the power button and the volume up button. When you see the fastboot logo, connect your device to your computer.

Spoiler In your terminal window, find the folder where you put the recovery image and run the following commands: fastboot oem unlock (You can skip this step if your phone’s bootloader is already unlocked).

fastboot flash recovery <recovery.img>. Image file should be the TWRP recovery image.

fastboot reboot (You can skip this step if your phone’s bootloader is already unlocked).. Image file should be the TWRP recovery image.

Spoiler In your terminal window, find the folder where you put the recovery image and run the following commands: ./fastboot oem unlock (You can skip this step if your phone’s bootloader is already unlocked).

./fastboot flash recovery <recovery.img>. Image file should be the TWRP recovery image.

./fastboot reboot (You can skip this step if your phone’s bootloader is already unlocked).. Image file should be the TWRP recovery image.

Download OxygenOS HERE Download Feedback App HERE Please make sure all your data and files are backed up before commencing. Flashing OxygenOS onto CM does require a system wipe, so you will lose all of your data. We are actively working on an easier, more automated solution soon to be available, but for now the build must be flashed manually. Please note, OxygenOS only runs on a OnePlus One device, do not attempt to flash this on any other device.The following instructions assume you have Fastboot and ADB installed.You first need to flash a recovery onto your device. We recommend using TWRP . Please download the recovery image to your computer. You can follow their instructions to flash recovery, or you can reference these steps:FOR WINDOWS USERS:FOR MAC USERS:You should now have the recovery installed.Unzip oxygenos_1.0.0.zip. In there, you will see a oxygenos_1.0.0.flashable.zip file.. On a Mac, you can use Android File Transfer Boot into recovery. You can do this on your OnePlus One by holding down both the volume down key and the power button.Once you are in the recovery interface, the first thing you want to do is a factory reset. Again, you will lose all your data so please make sure you have backed up everything before doing this.After the wipe, go to install and find oxygenos_1.0.0.flashable.zip. Confirm flash. This will flash OxygenOS onto your device.After the flash succeeds, you can reboot the device, which will take you to the new OxygenOS. Enjoy!If you find yourself wanting to rollback to CM, Make sure you have TWRP or CM recovery on the device.before flashing unfortunately so make sure you backup all of your data.Never Settle.