Keyboard behaving weirdly after water spill
So my partner spilled an infusion on his laptop.
We've put it upside down and everything. We've opened it and dried it as much as we could. It's powering on OK but we can't pass the password screen.
Basically, the password won't work because the keyboard is behaving strangely.
I can't load the recovery mode. I was able to load the internet recovery mode and see how the keyboard behaves. Basically, when I type it's all in capslock and I'm not able to type numbers. I'm able to type lower cases by holding the shift key but no numbers... Obviously, my partner has numbers in his password and as I'm not able to enter the recovery mode I can't change his password to just letters...
I've tried plugging in a USB keyboard but the USB keyboard is behaving exactly the same.
At this point, I've got no idea what I could try next.
I don't think the keyboard is the issue, I think something is getting lost in translation between the keyboard and the system. If anyone's got any idea I would be really grateful!