Whats to do ?? can you help ?? Best regards.
I think Duff H gave you good advice. Can you include picture of the back of the calculator? The picture that Duff H posted shows the battery compartment door. There is no need to unscrew the back of the calculator, just put your thumb on straight lines and push towards the top of the calculator. It may take extra pressure if the batteries have leaked inside the case.
Good luck.
Paul
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