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Question posted by garlam on July 31st, 2022

Sharp El-w531xg Seems To Be Locked

Hi all, I replaced the battery of my Sharp EL-W531XG calculator.After that, instead of go back to "Normal Mode" it seems the be locked in some way: the display shows only "0x" . Every key I press seems to be ignored. Even the "hard reset" doesn't work.I already tried to remove/insert the battery many times.What can I do ?Thanks in advance.

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Answer #1: Posted by SonuKumar on July 31st, 2022 9:45 AM

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SonuKumar

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Press the RESET switch (on the back), with the tip of a ball-point pen or similar object, only in the following cases. Do not use an object with a breakable or sharp tip. Note that pressing the RESET switch erases all data stored in memory.

https://www.projectmaths.ie/documents/LearnCalculators/Sharp/ELW531InstructionManual.pdf

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Answer #2: Posted by Odin on July 31st, 2022 9:47 AM

Odin

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It's possible that your battery or calculator is defective, but the most likely (and only other) cause is faulty replacement of the battery. For the latter, review and carefully follow the 8 steps at https://www.manualslib.com/manual/151367/Sharp-Writeview-El-W531.html?page=4#manual.

Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.

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