I was using my MBP A1211 yesterday when all of a sudden the video inverted. The video also looked like it had only 16 colors as well. Rebooting didn't help. Resetting the PRAM also had no effect. I immediately recognized this as a hardware problem, not anything to do with software e.g. the Universal Access Control Panel.
Admittedly, my MBP had been subject to two accidental drops, one onto carpet and one onto grass only one month apart two months ago, otherwise, there was no operational malfunction whatsoever.
Using the guides from ifixit.com, I decided to open up my MBP to see if there was a connector which had worked it's way loose. All looked fine on the logic board. I then removed the display completely (damaging an airport antenna cable in the process) and opened up the back of the display itself. All that's required for that is two screws at the bottom left & right of the screen which are not accessible until the display is removed from the body. I carefully levered the back of the display off to reveal in innards of the display. There is a flexible PCB running the width of the screen from the top to about 1/4 of the distance down. I removed video cable from that board and replaced it. While it was all still apart, I connected the screen back to the motherboard and booted up...and to my surprise...all was back to normal, albeit the screen was flickering a bit. I then completely reassembled my MBP and all was still good.
This morning I was using my MBP without any problem, not even any screen flickering. This has baffled me and still have no idea what caused it.
I still believe it's better to spend a bit of time opening up your MBP and having a look, than spending money replacing apart which may not need replacing.
P.S. Be VERY careful with the 3 Airport cables. The damaged cable was not repairable, but my Airport is still working both on 802.11g & 802.11n without any noticeable performance degradation.
[quote|gswingo]I was using my MBP A1211 yesterday when all of a sudden the video inverted. The video also looked like it had only 16 colors as well. Rebooting didn't help. Resetting the PRAM also had no effect. I immediately recognized this as a hardware problem, not anything to do with software e.g. the Universal Access Control Panel.
Admittedly, my MBP had been subject to two accidental drops, one onto carpet and one onto grass only one month apart two months ago, otherwise, there was no operational malfunction whatsoever.
Using the guides from ifixit.com, I decided to open up my MBP to see if there was a connector which had worked it's way loose. All looked fine on the logic board. I then removed the display completely (damaging an airport antenna cable in the process) and opened up the back of the display itself. All that's required for that is two screws at the bottom left & right of the screen which are not accessible until the display is removed from the body. I carefully levered the back of the display off to reveal in innards of the display. There is a flexible PCB running the width of the screen from the top to about 1/4 of the distance down. I removed video cable from that board and replaced it. While it was all still apart, I connected the screen back to the motherboard and booted up...and to my surprise...all was back to normal, albeit the screen was flickering a bit. I then completely reassembled my MBP and all was still good.
This morning I was using my MBP without any problem, not even any screen flickering. This has baffled me and still have no idea what caused it.
I still believe it's better to spend a bit of time opening up your MBP and having a look, than spending money replacing apart which may not need replacing.
P.S. Be VERY careful with the 3 Airport cables. The damaged cable was not repairable, but my Airport is still working both on 802.11g & 802.11n without any noticeable performance degradation.[/quote]