BA II Plus

The buttons on my calculator were all fine until yesterday. The enter and 0 button are sort of jammed…i feel like im fighting with it to get it to work…i pretty much have to apply some pressure for them to work. Anyone experience the same issue? Any suggestions to fix the problem or is it time to buy a new calc? Thanks!

open it and clean it or buy a new one that calculator is your new best friend for the next 3 months