HP Forum Archive 15

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42s won't turn on Message #1 Posted by Brian D on 25 Mar 2006, 9:12 p.m. I have a 42s that won't come on after I put new batteries into it. Is there any where to get it fixed?

Re: 42s won't turn on Message #2 Posted by Randy on 25 Mar 2006, 10:59 p.m., in response to message #1 by Brian D In all likelyhood, there is nothing wrong with it. It's just stuck in lah-lah land due to the battery change not being fast enough. If you had any programs in it, kiss them bye-bye, there is no way to save them at this point. Here's fix #1: Press and hold the E+ and XEQ keys down. While holding them down, press and release ON then release the E+ and XEQ. You should see Memory Clear and be back to whatever you were doing before you had to key all your programs back in :( If that doesn't work, here's #2: Take the batteries out and touch the two terminals in the calculator at the same time with a coin or straighened paper clip. This will remove the residual voltage on the memory back-up capacitor. Put the batteries back in and enjoy. And #3: Leave the batteries out overnight. Same result as #2, it just takes longer.

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