Hello. I got this secondhand iphone 13 pro max that has its screen turned green 2 months after i bought it. It flicker to normal screen at random times.
Do yall know a person or a friend of a person in Malaysia who fixes this without having to replace the whole screen? like who knows how to identify different screen issues and like measure the voltages and fix using jumper wire?

The closest i have seen is this guy from Myanmar. Võ Quang Hiệp. Look at his pinned post in Facebook and he had this guide that only a technician can understand.