Quoted from mtp78:
Just got my prem unboxed. Can't get into service menu to change to freeplay...I open coin door and buttons do nothing..haven't had a stern since metallica...any help how to get in the menu ? Thx
On my pro neither volume button worked at all, and at first I thought I got a bad service button assembly like the one on my JP. But since the menu and select buttons worked perfectly on this one, I did some troubleshooting and found the 2 volume wires weren't crimped properly on the connector to the cabinet node board. After fixing that the buttons work perfectly.
Try tracing the wires from the button assembly to the node board and put a little pressure on the connector while pressing the menu button to see if you can get it to work.