I just got my HP48G back, and all that seems to be wrong w/it is that the B key doesn't work and the C key is flaky. I'm *praying* that the problem can be remedied by buying fresh batteries (it's giving low batteries warnings) but I'd be surprised if that works. All I've read about maintaining these calculators involves opening a device that was not designed to be opened, and I'm quite certain that'll leave me w/a non-calculator.
I'm hoping that the problem is a dusty contact. Is there any measure I can take to clean it w/out opening it up?
Cleaning HP48 keys NON-INTRUSIVELY
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