A:Answer By accident, discovered that the following works:
-Plug camera into PC using the UPS cable. Wait until power light on camera comes on.
-Press the on/off switch on the camera. A warning message "to begin charging, turn camera off" will display. Ignore this message.
- In a few seconds, a menu will pop up "Please select USB model", choices are PictBridge (PTP) and PC. Select PC.
- The camera should automatically mount. On Linux Mint, it mounts to /run/user/1000/gvfs.