HP Forum Archive 21

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48G problem Message #1 Posted by KC on 14 June 2012, 9:12 a.m. Hello everybody, My 48G ran out of power, and during battery replacement, I have done the most silly thing. I replaced the batteries, the screen asked for "Try to recover memory?" I chose yes, but then, without replacing the battery cover, one of the battery fell out! I placed back the batteries into the batter compartments. This time, the whole screen turned dark without any response. I tried to press ON-C, ON-A-F, insert paper clip to reset hole, press a coin against the battery contacts, but all to no avail. Now I just removed all the batteries, hoped that after draining the electricity, the calculator would return to normal. Is it what I should do now? Any ideas? Thanks a lot. KC Edited: 14 June 2012, 9:19 a.m.

Re: 48G problem Message #2 Posted by JMBaillard on 14 June 2012, 3:19 p.m., in response to message #1 by KC Hi! I read in "Voyage au centre de la HP48 " the following method: Insert the batteries in the reverse position during a few seconds, ( no danger ) and reinsert them in the proper position. I never tried that but I hope it helps. JM.

Re: 48G problem Message #3 Posted by Gjermund Skailand on 15 June 2012, 4:19 a.m., in response to message #2 by JMBaillard I would suggest you take out the batteries, then short circuit the connection leads with a wire. Reversing the polarity could be dangerous.

Re: 48G problem Message #4 Posted by KC on 15 June 2012, 8:33 a.m., in response to message #1 by KC After removing the batteries from the calculator for a day, I reinstalled the batteries. It worked again. Thanks a lot for your advice anyway. KC

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