Old PLCC sockets tend to produce bad contacts after a while. Either simply through age, use or abuse (see my DIP STE adapter and PiStorm STE videos!)
The correct answer is to replace or retension the sockets as the sprung contacts have been pushed back over time.
However there's a much faster workaround for a short-term win.
Don't rely on this for your space probe, though...
@thetechnoshed
/ thetechnoshed
github.com/dh219
7 май 2024