As I mentioned much earlier, your first need is to find what's stopping working, and the first part of that is to check if the LOPT stage is running or not.
As you don't even know that basic fact, you've no idea if G2 mis-adjustment is a problem.
Now I need to find a way to check which test fails. Bit difficult though, I can barely reach the board when it is in the monitor..... Not sure how to continue