Hi all, I'm using an M9 with a faulty input jack.  I'll be playing the device, and my volume will drop almost completely out.  If I reach underneath the 1/4" cable jack and lift up, I can get it to connect and continue at normal volume.  But it will short out again.

The last time I had this issue I tightened the jack with a ratchet, which worked for several weeks.  It doesn't seem to be working this time.

Is this an issues where I need to send the device in and have the jack replaced?  Or is there a fix I can make myself?

Thanks for you input and help.