OK, I just wanted to throw a bit of info out there. This concerns the method of repairing the missing lines on the Gameboy screen, which I'm sure most of you know very well. In my experience, I have found that the soldering iron trick does NOT work all the time. After doing that on a few DMG-01s, only 1 got fixed & stayed fixed. The others would not stay fixed at all.
However, I recently came back to one & tried my hot air rework station with a small nozzle & low pressure. Hot air fixed the lines very easily, & they stayed fixed, even when I press on the cable. What the soldering iron couldn't do, hot air did much better, & much easier too. It seems that hot air works much better than a soldering iron. I used around 300degC. Of course, not everyone has a hot air rework station... you could use a heat gun, or even a hair dryer to heat the ribbon where the lines need to be fixed. If anything, maybe block the air from blowing on the LCD itself too much.
Anyway, I recommend using hot air instead of a soldering iron to fix the lines.
