Pro tip: A $5 USB microscope saved me on a laptop board repair
I had a gaming laptop from a client that would not post, and all the voltages looked good. After two hours of checking, I saw a tiny crack in a BGA solder joint under a chipset heatsink. I almost missed it with my normal loupe. I got a cheap USB microscope from a local shop and it showed the crack clearly. Has anyone else found a good use for these little scopes on tough jobs?
Yeah, that "tiny crack" thing... it's wild how the small stuff we can't see easily causes the biggest headaches. Makes me wonder what else I'm missing in plain sight sometimes.