All my older Forerunners has been recognized on my Windows notebook as a USB device and got a drive letter assigned. So making a backup of the FIT files, updating the EPO database, etc. was an easy thing. The standard USB mode (aka Garmin mode) is also much faster than the lousy MTP variant.
Now my FR955 does only work in MTP mode, I've checked different cables, different PC's and different Windows versions. Is that a software/firmware bug of the FR955 or is my FR 955 faulty?