If the keyboard is defective, check exactly which letter/number isn’t working and then try the password without that character to see if it works. If the keyboard has no issues, it’s also possible that you typed, for example, the 4th letter first and only then the 3rd one — it happens quite often that we mistype like that, e.g., writing baanna instead of banana.

Also, if you extract and send me the wallet hash using bitcoin2john.py from John the Ripper, together with the password you originally tried, I can help you figure out what the correct password was.