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You can get replacement keyboards from Beetstech or Louis Rossmann’s store. I’d recommend one of the two because they both consistently provide quality parts. I’ve bought keyboards from random ebay sellers and almost every time I’ve received keyboards with keys that sit crooked. Never have that problem with Beetstech or Rossmann.
Louis doesn’t sell the keyboards with backlights or the necessary replacement screws, but Beetstech does, so I usually buy those. You don’t have to replace the backlight, but for the slight price increase I just figure why not?
Blasting a chip with a heat gun or sticking a board in the oven is not a “fix,” it doesn’t fix the problem (which is a bad graphics chip). By heating the chip up, you’re only temporarily reviving the system and it’s anyone’s guess as to how long it lasts (anywhere from an hour to months).
This is also why you don’t buy used chips off ebay or pay for services that claim to repair boards with this problem, because reflowing a crap chip doesn’t magically fix the fact that the chip is crap. That’s why you’ll never see a warranty for these greater than 90 days, because the person who “repaired” it knows that they didn’t actually repair it and that it will probably fail after 3 months if not before then.
Also, blasting/baking is not “reflowing,” actual reflowing involves an expensive machine that you use to remove the chip, replace the solder, and then resolder it in place. But since the solder balls under the chip are not the problem here, reflowing a crap chip won’t magically fix the crap chip, either.
Chelley: You probably need a new keyboard. Power button runs through the keyboard so if the liquid has shorted the keyboard the button won’t work.