Bob, et al:

FWIW, the official name of the little boards I'm send is TI Simplelink SensorTag Devpack.

I'm including a photo of the one that works.  You can see when you look at a new one) that the replacement connector goes on the opposite side of the board from the existing 10-pin connector.  The existing one is female with no key.  The new one is male with shroud and key.  The key is on the outside edge of the board, and the connector is on the opposite side of the board from the chip (on the same side as the larger connector.

I tried to load code using it (despite not being connect to the RTIHU) and got the attached error message.  I used the xdsdfu utility that the error talks about and discovered this:

./ti/ccs1020/ccs/ccs_base/common/uscif/xds110/xdsdfu -e

USB Device Firmware Upgrade Utility
Copyright (c) 2008-2019 Texas Instruments Incorporated.  All rights reserved.

Scanning USB buses for supported XDS110 devices...
<<<< Device 0 >>>>
VID: 0x0451    PID: 0xbef3
Device Name:   XDS110 with CMSIS-DAP
Version:       2.2.5.1
Manufacturer:  Texas Instruments
Serial Num:    L787
Mode:          Runtime
Configuration: Standard
Found 1 device.

Notice the serial number L787.  One of my working ones has the serial number L3122222.  So letter L and 7 digits.  I am setting yours to L31444444 and L31555555.  Like this:

bfisher@skylab:~$ ./ti/ccs1020/ccs/ccs_base/common/uscif/xds110/xdsdfu -m
USB Device Firmware Upgrade Utility
Copyright (c) 2008-2019 Texas Instruments Incorporated.  All rights reserved.
Scanning USB buses for supported XDS110 devices...
<<<< Device 0 >>>>
VID: 0x0451    PID: 0xbef3
Device Name:   XDS110 with CMSIS-DAP
Version:       2.2.5.1
Manufacturer:  Texas Instruments
Serial Num:    L787
Mode:          Runtime
Configuration: Standard
Switching device into DFU mode.

bfisher@skylab:~$ ./ti/ccs1020/ccs/ccs_base/common/uscif/xds110/xdsdfu -s L3144444 -r
USB Device Firmware Upgrade Utility
Copyright (c) 2008-2019 Texas Instruments Incorporated.  All rights reserved.
Scanning USB buses for supported XDS110 devices...
Setting serial number to "L3144444"...

And now the box asks me to select whether I want to use TIXDS110_Connection-S/N:L31444444.  I said yes, and it said to update the firmware from 2.2.5.1 to 3.0.0.15 (and there was an update button). This works ok, and now since I am not connected to the RTIHU, it is correctly claiming that it can't connect to the target.

I'll update the serial and firmware on the second one I send you as well.

73,

Burns Fisher, WB1FJ

AMSAT(R) Engineering -- Flight Software