u/Foreign-Giraffe5566

Device: OnePlus 12R (8GB RAM / 256GB)

I am facing a fullscreen issue while gaming on my OnePlus 12R. In some games especially eFootball, the display does not properly use the full screen. The punch-hole camera area remains black which reduces the gaming experience.

Interestingly, this issue does not happen in games like PUBG Mobile, Free Fire, or Clash of Clans. Those games run in proper fullscreen without any black area around the camera cutout.

I have been facing this issue for a long time and it did not occur after recent updates. I already tried enabling fullscreen mode from app settings but the issue still persists in eFootball.

Is this a software optimization issue from OxygenOS or an app compatibility issue? Any solution for this problem?

Please help.

Hi guys,

OnePlus 12R user here. I’m a gamer, and I’d like to know how to enable or make the most of the ultimate gaming experience on this device.I’m currently facing performance drops. The game starts lagging within 10 minutes of gaming. While turning on Pro Gamer Mode, I mostly get stable FPS, but the phone heats up and the frame rate drops.Suggest some tips or tricks to get the ultimate gaming experience. I don’t care about heating, but I need maximum gaming performance.

Hi, I am a OnePlus 12R(India) user. My phone is 1 year and 3 months old, and the battery health is 96%. Currently, the device is running on the OS 16 April update. I am facing heating issues and performance drops while gaming. I think the screen-on time (SOT) is below 6 hours. I am a heavy user and usually play games like BGMI and eFootball. While playing, the temperature rises to around 40-44°C within 30 minutes. I am planning to downgrade, but I don't know which OS version provides the best performance and battery backup. I don't care about features like Al. Please suggest the best version for my 12R and share your thoughts and experience with this device. Also, let me know how to avoid thermal throttling, if it is possible, so I can utilize the system's maximum performance. I have also heard that some devices got bricked while downgrading, so I am a bit concerned about that.