u/yasinyn

Hi everyone,

I have a brand new Cooler Master GM25FP, and I think it might be stuck in Factory/Test Mode.

As soon as I turn it on, it continuously cycles through red, green, blue, white, and black screens. It never shows the Cooler Master logo, the OSD never appears, and the 5-way joystick doesn't respond at all.

I'm sure this is not a cable or connection issue. I've tested HDMI, DisplayPort, different cables, and even powered the monitor on with no video cable connected. The behavior is exactly the same.

Does anyone know the key combination or hidden service menu to exit Factory/Test Mode? Has anyone managed to recover a Cooler Master monitor from this state?

Any help would be greatly appreciated. Thank you!