I bought an M10 second hand a couple of years ago, and outside of experimenting with it at home a handful of times (literally probably less than 10 times), I've never actually used it to record any shows. It's just been sitting in my closet basically. Looking at the filenames, the last time I used it was back in 2017. It did work fine though.
I just took it out again, and when I plug my mics (Church Audio CA-11) into the mic port, the left channel is just completely static. It still picks up audio, but it's very faint, and it's completely drowned out by the static/hiss. The right channel is fine.
When I take the mics out and use the internal mics, that is completely fine, and I used the mics plugged into my PC and no noise, so clearly something seems wrong with the jack. Has anyone else had this issue and managed to fix it (is the M10 easy to disassemble?), or is it time for a new recorder (the A10 perhaps)?