Opentracker USB firmware issue

I have a opentracker USB that suffered a firmware failure. (i was trying to update via otwincfg) After trying safe mode i don't see the deivce on the serial interface or the USB interface. I'm getting a stead flashing from the LED.
Is there anything else i can try to recovery the device?
I think I am having a similar issue with the OpenTracker USB I got at a flee-market... I am getting continuous flashing of the LEDs when powered up, I get errors in dmesg that a USB device can't be enumerated (unless I short CN4-2&7, then there are no messages in dmesg)