Posts: 88
Threads: 5
Joined: Mar 2011
I cannot help you with the original firmware. I doubt they'll notice, but I understand your concern to dumb down the unit to its original state.
Peeling off the key overlays is best done with a very sharp knife like an xacto knife or a cutter knife. With the knife, pry off a corner of the key overlay and peel it off. Be very careful not to cut in the keys with the knife. I managed to end up with a few minuscule cut marks in my keys. The overlay between the keys comes of pretty easy. Cleaning up the glue is best done with alcohol.
Good luck. A shame that your 30b has these issues; my two units have excellent keys.
Jeroen
Posts: 73
Threads: 2
Joined: Sep 2011
When you peel labels (in general, but the WP34S overlays in particular), they come off the best if you pull the label at a 90 degree angle from the surface. (Don't pull "back" --- pull "up".) Also, pull slowly and be patient. You want to use the "pressure sensitivity" in the pressure-sensitive adhesive to your advantage. The idea is to let the adhesive come off the key (by applying "negative prssure") with the label. If you pull too hard or too fast, you'll either "split" the adhesive (half on the label and half on the key) or break the label substrate (sheet).
The things you learn on your summer job in the test lab at ( enter name of a company that is now part of a big company that makes lots of label products ).....
Dale
Posts: 250
Threads: 14
Joined: May 2007
Yes, I've found about 20% of the 30b calculators that I test have a bad key, and the [+] key is a frequent offender. Even worse, HP refuses to warrant them.
Good luck.
Eric
