sudomod

Hi all, need some help. Awhile back i made myself a gameboy zero using kites shield circuit board. I havent used it much the last few months, and when i switched it on i was met with a blank white screen. I turned it off and now since that first start up i only get a blank screen and when pressing the buttons it seems like the 'special' button is always being pressed (if i press A the light for wifi cones on, if i press B it goes off).

Ive tried fully charging the battery, formating and re-flashing the sd card, even removed the wiring for said 'special' button but the issue is still there.

Any help would be appreciated!