Chosen Solution
Spilled milk on left side of msi apache laptop and now keys b c x left shift don’t work. Tried drying it out but still nothing. Can I take the keys off from the top or do I have to tear it all apart, or get ripped off by a repair shop? Or use a sub keyboard forever?
Take it to a repair shop or at least take the keyboard out via disassembly and clean it. Sounds like keyboard needs to be replaced and inside of laptop needs to be cleaned thoroughly.
Try spraying it with electronic spray. Can be purchased at any electronic shop.