so, some of my keys doesn't working, the keys number 7 8 9 on the right cannot work, i don't really care at first, but know my alt doesn't work, and it's bothering me as i can't do alt+f4 or alt+tab
Try to test them with external USB keyboard, if everything's ok, looks like your embedded keyboard module was damaged by liquid or just broken. You need to replace this keyboard module.
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