That is an extremely new instrument. Carlson may not have drivers for it. Topcon instruments are made by Sokkia. He may try using a Sokkia SET configuration in Carlson. Or try using Topcon Magnet field v 5.1 on his tablet PC.

My suggestion would be to exit from all software applications (e.g. Carlson SurvPC, etc) and make sure the BlueTooth stack is enabled at the Windows level and attempt to form a BlueTooth bond/pair at the Windows level per the Topcon GM50 guidelines. If (after this procedure) communications cannot be formed, my next suggestion would be to contact the Carlson Technical Support Staff at 606-564-5028 or via email at support@carlsonsw.com for further diagnostic information. 

What it data collector doing that causes the problem?  We are using a Topcon GM-102 with an FC-5000 running Carlson SurvPC 6.0 using the GM(TopBasic) diver.  Our issue has been that the instrument will take anywhere between 10 sec to 5 minutes to get the measurement.  Sent both the data collector and instrument to the dealer and they said that the operating system on the data collector needed to be updated.  They did that and tested both the instrument and DC and it worked fine for the first few days.  Now it is back to the same issue of taking too long to get the shot.