I have an HP-11c and changed the batteries but the only thing that happens is there are some numbers in the display that never go away. Yes, I tried all the button combinations listed in the manual. I even tried shorting the battery as described in the manual, still no luck. Any assistance would be apprecicated. If it is determined that mine is dead I would be looking for an 11c that has a dead display, since mine is ok.
Frozen HP-11c after batt change
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