My 5635 suddenly developed what I guess is a hardware issue (screen registration shifted an inch to left, now return button can't work at all). There doesn't appear to be a hidden setting or other option to recalibrate that I can find. Found and bought a legit new in box 5630T which I assumed could use the same software. The old unit has upgraded maps dated 5/30/19 (main map is USCAN_TA7402DM103S.imi). Attempted to add this to the 5630 by changing mapversion.ini after replacing...won't recognize. Thinking I was missing something then tried renaming the file to the original working file (USCAN_TA6031DM103S.imi), still won't load. Are they really incompatible? What am I failing to understand... Thanks
