I managed to get working once by just pluging in and using an network cable instead of wifi havent tried since i think there is a switch in the front that you flick that it uses the usb but that message comes up and i just tried it until it worked.
As discussed, the device does not use a RUIM and therefore the error message must be ignored. The device has the RUIM information hard coded into the device and therefore does not require one.
I also get the RUIM message. Sometimes I get lucky and I can use the app, but mostly I get the error message. I once got the app to work by continually trying to run it until it finally succeeded.
Ok here are my results: I simulated your error @ ushir but found that if you forgo the USB cable and connect using only the LAN connection no error is generated.