I trying to connect an taobao kedei tft lcd screen to my arduino MEGA, I wired the data pin D0-D7 to the mega pin 22-29, I found out that the model in it was 0x0303. I tried many tft lcd library available on the net and all produce an white screen and blackllight on
Uhmmm... I searched for Kedei shop on Aliexpress and it seems that he closed.
It is still on taobao https://kedei.world.taobao.com/
maybe you can email to them as I did.