CC2640: cJTAG problem of LAUNCHXL-CC2640R2, to download for CC2640

Hi.

I used LAUNCHXL-CC2640R2 to download for CC2640 firmware to CC2640 chips. (using cJTAG)

I have a custom board using a CC2640 chip.

But, LAUNCHXL-CC2640R2 can not detect the custom board in SmartRF Flash Programmer 2. (ver 1.7.5)

So. i check the firmware version of XDS110.  It is 2.3.0.7.

I try to downgrade using "xdsdfu.exe" to "2.3.0.5".  "2.3.0.5" is found in TI Emulators 6.0.504.2 of Code Composer Studio 6.2.0

And i solve that.

Please some one check the problem for next XDS110 firmware version.

and