i own an Epiphone SG in this model there is a push\pull option on the volume knobs to switch from humbucker to single coil pickup and i use this option all the time
a few days back when i pulled the bridge volume knob it got detached taking the little metal thingy with it so now all i can use is the humbucker and sometimes i dont get sound from the bridge pickup at all
since im not gonna gain access to a lab in the nearest future is there something that can be done by myself?