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How to open a Casio FX-4000P?
08-07-2021, 08:51 PM
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How to open a Casio FX-4000P?
I got a 2nd hand Casio FX-4000P and the only reason it is not working is that AFAIK the batteries are empty. However, the 2 screws on the back have apparently been opened and fastened by someone with either the wrong tool and / or no feeling for it with much too large a force so the heads are damaged and I can't unscrew them normally.

The head is very shallow, with small Torx in an old Nokia phone suffering from the same issue I got them loose by soldering a screwdriver in the screws but I don't think that is going to work here.

Any advice? Is there a way to get those screws off without damaging the rest of the calculator? And where would I look (from Europe) for decent replacement screws?
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Messages In This Thread
How to open a Casio FX-4000P? - johanw - 08-07-2021 08:51 PM
RE: How to open a Casio FX-4000P? - johanw - 08-08-2021, 12:30 PM
RE: How to open a Casio FX-4000P? - johanw - 08-08-2021, 01:05 PM



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