During upgrade of newer version of software, the PC went into the Hang state, when upgradation of software reached at 27%. Then I had to reset the PC to come out of hang.and the device software remained in complete. Afterwards I found that the device stoped recognising and stopped working. I tried several efforts to make the device to Force Reset, like shorting pins 10 and 5 or various options in XBee recovery in tool, but not succeeding. Any suggesion to set the device right?