On the second unit I reflowed using a hairdryer, followed by my kitchen oven. On the first machine I had to troubleshoot for quite a while before determining the issue, including everything mentioned here in this thread, until finally deciding to replace the mobo over re-soldering the GPU (which I incorrectly assumed was my only option).
Eventually nothing would help and they brought their laptops in for repair. Cause: overheating.Įach owner has said the same thing: over the past few months, every once in a while the screen stayed black during boot-up, but a restart or something similar like removing the battery, letting it sit overnight, or power-cycling made it boot correctly. I have a small electronics repair shop out of my home and just yesterday checked in a third Toshiba machine with this same problem: failed GPU.
