Just bought used camper with mppt 75/15 set up and don’t have previous owners password tried 000000 didn’t work so is there a password on it ?, it’s mounted to where I’ll have hard access to it,I can see front and left side of it that’s it password on other side or ? I see a signal you have to be right on top of it but can’t connect. appreciate the help I’m a NEWBEE ok Thanks, Murda5020
Sorry, to reset the pin you’ll need the puk, the label will be on the side or the bottom, you’ll need to remove it, or call the previous owner and ask 
The only other way to program will be a ve direct to Bluetooth dongle or a ve direct to usb dongle.