A weird trick with a hair dryer fixed a whole batch of dead laptops last month

I had a stack of five identical business laptops from a small office, all with the same issue: they wouldn't turn on after a power surge. The usual checks showed no blown fuses on the boards. I was about to start ordering parts when I remembered an old trick. I took a basic hair dryer, set it on low heat, and gently warmed the area around the main power chip for about two minutes on each machine. I let them cool for an hour, and three of the five actually powered up. The heat must have reflowed a tiny crack in the solder that I couldn't even see. It bought the client time to back up their data before a proper repair. Has anyone else had luck with this kind of low-heat reflow on modern boards, or did I just get lucky?

3 comments

3 Comments

aaronclark1mo ago

Nah, it's not that wild. Look, if a machine is totally dead and headed for the trash, a little heat is a zero-risk move. I've seen it work on old game consoles too, where a cold solder joint just needs to wake up. It's not a real fix, but it's a solid last-ditch trick to get data off. Calling it "baking" makes it sound reckless, but low heat from a hair dryer is way different than sticking a board in an oven. You're just trying to get a little more life out of it.

the_holly1mo ago

Seriously? You're just baking motherboards now? That's a wild fix for something that sounds pretty major.

the_karen19d ago

Huh, that's actually pretty interesting. Did you aim the heat right at the chip or kind of sweep it around, like a general warming thing?