Matter Lock Example not starting on nRF54LM20-DK

[Ronald Reichmuth]

Hello,

I recently received two nRF54LM20-DK (PCA10184) boards and would like to flash the Matter Lock example. Unfortunately, the application doesn't seem to start. I don't see any logs, and none of the LEDs are lit. What could be causing this? The same example runs on the nRF54L15-DK (PCA10156)

"Blinky" and "Hello World" works. That means the board is basically functioning.

Using SDK and Toolchain v3.2.4. 

west build -p -b nrf54lm20dk/nrf54lm20a/cpuapp

[Amanda Hsieh]

Hi Ronald, 

I can get the Matter Lock log from nRF54LM20A-DK as the following figure without modification:

There are two virtual COM ports on the nRF54LM20A-DK. Could you try to connect both ports to see if you can get a log from one of them?

Regards,
Amanda H.

[Ronald Reichmuth]

Hi Amanda,

in 'CONNECTED DEVICES' you have NRF54LM20A_xxAA_ENGA. But my board is showing "NRF54LM20B_xxAA_ENGA" thats the only diference I see.

 

[Amanda Hsieh]

(updated)

nRF54LM20b is planned for v3.3.0.

This should land in NCS main in a few days.

https://github.com/nrfconnect/sdk-nrf/pull/27570 

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We only test and verify nrf54lm20dk/nrf54lm20a. See Requirements

I need to check with the team for nrf54lm20dk/nrf54lm20b. 

[Ronald Reichmuth]

Hi Amanda,

Basically, I want to use the nRF54LM20A. As far as I know, the DK (nRF54LM20-DK) is always equipped with the B version. That means I would like to use the “nrF54lm20dk/nrf54lm20a/cpuapp” board.

[Amanda Hsieh]

Please contact your regional sales manager or use the form of Sales related questions for the help.