When I switch on my Vantage HD 7100S it is only showing Loading on the display and the light behind the Vantage name is blinking. :2: Normal behaviour is that it is showing Loading for about a half second and then goes on to the Booting stage. If it was stuck on Booting, I could have flashed it with a new firmware through the serial connection. I have done that on another receiver, so I know the procedure. But this one is stuck on Loading, and it does not respond to firmware flashing through the serial connection. I suppose it might be that the bootloader is damaged. Does anyone know if it's possible to fix this?