nRF52840 dongle can't grow USB interface after flash Thread Certification R63 FW

[chew_moon_cake]

Try run Thread Certification with nRF52840 dongle, steps as below:

1. when Test harness is R62, Nordic devices work normally.

2. upgrade Test Harness to R63, and flash nRF52840 to the FW of R63. (C:\GRL\Thread1.2\Firmwares\Nordic\OTN) -> it can flash success, but can't grow USB interface.

3. re-flash nRF52840 to the FW of R62 that can work normally before. -> but also can't grow USB interface.

4. re-flash nRF52840 to the un-certification  FW， it can normal.

 

[Edvin]

Hello,

What do you mean by "Can't grow USB interface"? Do you mean it can't connect via USB? 

Where did you find the firmware that you flashed on the nRF52 dongle? Do you have a link? Both for R62 and R63.

Best regards,

Edvin

[chew_moon_cake]

What do you mean by "Can't grow USB interface"?   -> can't see Port info in PC's Device Manager.

Firmware link(from thread group R63 docment): www.dropbox.com/.../AOpj46nlrLQcaA24t24bjQE

[Edvin]

Hello,

Sorry, it is not clear to me whether this dropbox link is provided by you, your company, or coming from thread itself. Do you have the link to some openthread documentation linking to this?

If it is in fact FW coming from the OpenThread group, intended for the dongle, then I am afraid it is not provided by us, and I don't know what I can do with it (if it is just a precompiled .hex file).

If this is the case, you need to reach out to OpenThread, and ask if they are seeing the same issues when flashing the FW to the nRF52840 dongle.

Best regards,

Edvin