Hi everyone
I need your help in trying to fix an Hyperkin FC Mobile II unit. As you probably know, this is one of the many NES-compatible handhelds out there. This unit has both a built-in screen and an AV-out to connect it to a TV and display the game on a larger screen. My unit is having the following problem. It works, but it has developed a weird issue with the built-in screen. After a few seconds of playing, the screen turns completely white. If I switch it off for a few minutes and then on again, it displays an image correctly for a few more seconds and then becomes completely white again. It must be noted that the game itself is *not* locked up, it keeps running and if I connect the unit to the TV with the supplied AV cable, the image on the TV *always* appears correctly even when the built-in screen is white, which means that this is not a problem with the cartridges' contacts (otherwise the game would lock-up or look weird on the TV as well). I tried to open the unit to see if there was any visible damage inside it or anything that could be causing this strange behaviour (such as a loose cable or something) hoping that I could fix it myself easily, but nothing appears to be damaged or loose inside it. Does anyone have any other ideas I could try to fix this unit ?
Thanks for your help,
Flavio