02-14-2013 01:12 PM
I have a fairly new HP 15C Limited Addition calculator. When I turn the device on, "Pr Error" appears on the screen. When I press any buttion to clear this error, the caculator turns off. I have removed and replaced the same batteries (in an attempt to "reset" the calculator). This doesn't seem to help. Any advice, please?
02-14-2013 02:13 PM
Have you tried to hold down the - (minus) key and turn it On ?
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02-14-2013 05:03 PM
I think you should try new batteries. A reputable brand from a reputable source. Make sure the "+" of both cells are visible when replacing.