recently, I had an XBee 900MHz board with these symptoms. Digi support and I worked with my official Digi development kit's XBee to RS232 board and tried to revive it. Support guy did the death certificate for that one.waltr:
Communicate with modem… OK
Modem type = Name unknown (ID = BUNCHOFNUMBERS)
Modem firmware version =
EDIT: re the next post down… my comment, above, is N/A because above, I wasn’t using the SFE board. It’s been discussed many times that the SFE board’s diode in the serial data path isn’t correct for proper logic levels.