LDC1312EVM: Flashed wrong firmware, won't properly enumerate on USB

After some research, I found the "MSP430 USB Firmware Upgrade Example" mentioned in this thread: https://e2e.ti.com/support/sensor/inductive-sensing/f/938/p/571366/2095775 

I put the LDC1312EVM board into BSL (Bootloader) mode, connecting the VUSB to the PUR signal when plugging USB.

The tool detects the board and is able to talk to the bootloader:

I selected the "RevA" firmware for this board and clicked on "Upgrade Firmware".

The upgrade shows it is successful:

And the log too:

Starting
Mass erase occured!
Password Sent Successfully
Sending RAM BSL v00.07.08.38
Done RAM BSL v00.07.08.38
Sending C:\ti\Sensing Solutions EVM GUI-1.9.3\EVM Firmware\LDC1312_RevA\EVM_LDC1312_RevA.txt
Firmware Sent
Verifying memory
Memory successfully verified
Total programming time is 1s 
Resetting Device...
Starting application
Done!

Unfortunately, the EVM board still reports enumeration error after flashing the correct firmware... (I tried a bunch of firmwares and still no luck)

I tried to change the VID/PID values in the evm.inf file located under ti\Sensing Solutions EVM GUI-1.9.3\EVM Driver with the one reported by the board but Windows "Update Driver..." tool still reports the correct driver is installed (it ignores my .inf file version).

It looks to me like a mismatch between bootloader and application firmware. Maybe the bootloader version is too old?

It is unfortunate I don't have the tools to update the bootloader...

Any ideas on what should I do next? I'm getting dry at this point.

Thank you,

Francois

Hello Francois,

The method you used should have worked. Issues which could cause problems include some USB driver issue with the PC or a faulty cable. Can we get a replacement EVM to you?

Regards,

ChrisO

Hi Chris,

Actually, I was able to "play" with the EVM before bricking it, for some reason I decided I should update the FW to the latest version to make sure I'm not missing out on anything.
So in my opinion, computer and cable are fine. Just for the sake of it, I tried other USB ports and a different cable and got similar result (bad USB enumeration). In addition to that, the MSP430 firmware upgrade tool always detects de bootloader after connecting VUSB and PUR lines together, so looks like my setup is pretty certain to be fine.

Would you please send me a replacement? I just updated my shipping address on myTI profile.

Thank you,
Francois