MacBook A1342 blank screen/vertical lines
I bought a cheap A1342 the other day, the computer has this issue where if you power it on all it shows on the display is a black screen (but the backlight is on) or garbled vertical lines in various shades of grayscale. If you press the power button, it immediately powers down. The computer has no hard drive, so I’m expecting at least the flashing ? folder icon. Nothing, even on an external display. I hooked up a drive I took from a 2008 MacBook with 10.11 on it, the computer would do the same black screen/garbled lines except this time it stays on for about 5 minutes. The only way to shut down the computer is to hold the button down or wait the 5 minutes.
It isn’t an LCD issue - I’ve checked it. No idea what to do next. Commands (e.g. command-option-P-R) are still working, with the exception of those that go to a certain screen (e.g. boot picker) because well, I have no screen.
I’ve given up at this point. The computer doesn’t even show the apple. If anyone has a solution please reply and I will try the solution.
Is this a good question?