I tried to update firmware on an XBP24CZ7UIT-004 revF and an XB24CZ7UIT 8003 RevH, to Zigbee TH Req ver 4060 using XCTU and a SparkFun XBee Explorer, but it didn't work. I can still connect to both XBee units using the Serial Console, but after entering +++<CR> I get the following menu:
AT mode cannot be reached. Evidently, I did something incorrect when trying to update the firmware. I've tried to use XBee Recovery without success. How do I put the Zigbee TH Req ver 4060 firmware onto the S2C modules?