Stopping by the luthier's corner because I've got a Squier 51 that stopped working last year. It had a loose jack that I meant to tighten, but plugged it in anyways. The cable fell out, I tightened the jack, and suddenly no signal was coming through! I opened up the control cavity but couldn't see anything obvious like a loose wire, so here I am! I'm hoping that I can fix this easily myself, and I'm not afraid to start soldering anything if necessary, but I'm just not sure how to identify the problem. Obviously my first thought is that the jack has something wrong with it, but nothing stood out to me as not being in contact correctly. I'm also wondering if something could have happened to the potentiometers, but I'm not sure how to test this. Can anyone help me create a sort of checklist of things to look over? This guitar is cheap, and presumably has some cheap electronics, so if you have any suggestions on simple upgrades that I can make while trying to fix this issue (i.e. a better jack, potentiometers, resistors, etc.) I'd love to hear them! Thank you so much for any help you can give me! I really love this guitar for the bargain that it is and would love to be able to play through it again soon!