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LAUNCHXL-CC26X2R1: Flash Programmer 2 reports: Failed to enumerate XBAL devices

Part Number: LAUNCHXL-CC26X2R1
Other Parts Discussed in Thread: UNIFLASH

Hi!

i received 2 brand new LAUNCHXL-CC26X2R1 boards. 

Now when i try to programm mounted CC2652 processor i receive the following failure message:

>Failed to enumerate XBAL devices.

An XDS emulator may have incompatible firmware. See Help document for troubleshooting.

I tryed the 2Wire and 4 Wire JTAG Mode. 

Version of Flash Programmer 2: V1.7.5

When i remove the Jumper: TMS, TCK, TDO, TDI, SWO

the Programmer will be shown under connected devices: