R3PRO V2 problems

Having problems with the R3PRO V2 red light stays on will not initialize, I have checked the antenna, the usb for being full, shut down everything few times and started over and still the same thing any help before i have to send it back in

Thank you Bob

I had the R3 do this last week. I ended up formatting the usb, make sure you unclick the quick format option. It takes awhile, but it worked after that. You you need to make a folder called “DATA” after formatting, make sure its in all upper case.