Warning: This can go wrong and brick or factory reset the phone. I am not responsible for your own actions.DO NOT try this on a chinese firmware phone, it WILL brickYou can basically switch to any region, except chinese- For this guide i will be using the 15 Ultra as an example, but this can be done on any HyperOS 2.x.x version.- This method only works with an full upgrade file, aka .ZIP file to an newer build. (VERY IMPORTANT)- Downgrades are not possible ! The procedure...Read more