[BRLTTY] off topic - Cleaning alva delphi braille display

[Sérgio Neves]

Hi,
I have a alva delphi 40 cells braille display for 7 years.
Due to its usage, some dots don't go totally to up position.
I would like to disassemble it to clean it, but I don't have experience on this action.
Has anyone already done this? If positive, what care should I take?

Thanks

Best regards

Sérgio Neves
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