I use isopropanol regularly for cleaning flux off boards after soldering, it is fine and with 5v you wont fry it if it is still a little wet. Just clean it off good then let it dry and if you have concerns wait a little longer. You should be able to feel if there is stuff left in the keys.
I use isopropanol regularly for cleaning flux off boards after soldering, it is fine and with 5v you wont fry it if it is still a little wet. Just clean it off good then let it dry and if you have concerns wait a little longer. You should be able to feel if there is stuff left in the keys.