Well... I've googled this to no avail, searched for videos on YouTube, and still can't fins a solution to this issue. My problem is that I recently was given an original Game Boy by a friend, who said I could keep it if I could get it to work. I checked it out, and there was some corrosion in the battery connections, so I cleaned that up. Regardless of that, whenever I turn the system on, it powers on, however, that is ALL. I get no response from the screen, except for one time when the very top row of pixels turned on. The other 143 rows did not. Also, the speaker is still functional, although it simply clicks when the system turns out, and then makes a very faint fuzzy sound only audible when you hold the speaker to your ear. I took it apart for inspection, and I'm thinking the issue is the black spot on the metal plate connected to the back circuit board. I've included pictures, although I can't say if they'd be helpful or not.