First post, by targeted
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- Newbie
STM M48T86PC1 is an RTC clock package similar to DALLAS 12887 et al. Unfortunately, the existing instructions for DALLAS did not work for it, and I had to drill away the entire case to find out where the wires were.
Now then, here are the instructions on how repair an M48T86PC1 by drilling and attaching an external CR2032 coin battery to it:
https://github.com/targeted/m48t86pc1-rtc-repair