Yesterday, we had a Roundtable that was experiencing some challenges with dropping voice calls.  After investigating it, we discovered that it was running an old version of the firmware (Firmware: 1.0.3620.0).  After some research, we discovered that this version of the firmware doesn't support automatic firmware update via the network and was a pre-RTM build (RTM = 3760). 

Thus, we had to manually update the firmware.  To do this, we performed the following steps:

• Downloaded the latest firmware (http://www.microsoft.com/downloads/details.aspx?familyid=EF74CD39-0FEC-4C70-95C8-B01930B2B502&displaylang=en.  Note, there maybe a newer update so search for it.
• Download and install the RTmanage tool (http://www.microsoft.com/downloads/details.aspx?familyid=A3089FA8-72FC-4F11-B81D-87F0D09A3A9A&displaylang=en) which is the tool to manage and perform the firmware ugprade.
• Download the Roundtable deployment guide (http://www.microsoft.com/downloads/details.aspx?familyid=2EDC88BC-4C79-41A6-832A-B02A0CB2F82E&displaylang=en) which has instructions on how to use the RTmanage tool.
• Connect the Roundtable to your computer via the USB connection.
• Execute the following commands:

Rtmanage.exe -m:img -i:EBOOT -f:CPUEBOOT.bin -s:CPUEBOOT.cat
Rtmanage.exe -m:img -i:nk -f:nk.bin -s:nk.cat
Rtmanage.exe -m:cfg -r

Note: 

• The previous commands assume that you extracted the firmware in the same directory as the rtmanage tool.
• The second step took about 5-10minutes but the tool gives a progress indication of updating the firmware
• The last command reboots the Roundtable.

 Thanks,

Dean