BLE DTM Cannot Connect after updating nRF Connect from v4.2.1 to v5.2.0

Hi,

I have a nRF5340 DK (PCA10095) that was working fine on the nRF Connect v4.2.1. I use the Direct Test Mode functionality.

However, after updating to v5.2.0, the DTM wasn't able to work properly.

The DTM software recognizes the device, but when I tried to start the test, an error: "Cannot communicate with device. Make sure it is not used by another application, that the correct serial port has been selected, and that it uses firmware compatible with Direct Test Mode."

I read the JLINK COM port off the Device Manager and set the Baud Rate to 9600.

Please advise what could be the cause. Do I need to flash a new firmware when I update the nRF Connect software?

Thanks.

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