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Actually not that hard. It seems the optically clear glue between glass and digitiser can be broken down with isopropanol. I practically soaked the whole assembly and pulled a thin nylon string between glass and digitiser to separate them. But it destroys the other glues as well, so just removing the glass will not work, the whole thing came apart, including backlight distribution plate. I do not know if it can be put together well enough to use. This display already had a partly malfunctioning digitiser, so I took it apart just to see if it was possible. Touch seems the same as before but that is a sample size of one.
I ran into a problem with the buttons, there seems to be a limit to used GPIOs at the same time or something. Using both works fine if the HRM is off. Otherwise I get
WARNING: No free GPIOTE for watchfor the second one. Does this need a firmware change or is there another workaround?
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halemmerich
This looks great! How hard was it to separate the LCD from the glass?