verification failed with simple hello world uart and given example in nrfconnect

[Bipinv2000]

please give me the solution for this issue i have uploaded simple hello world uart code with nrfconnect quick start

[Benjamin]

Something else is using the COM port, that is why you see the failure. Try closing everything else and just open the Quick Start application?

Also, are you able to see logs in the VS Code extension?

[hanmira]

Check if the board firmware is corrupted. Reflash the board with the latest firmware using nRF Connect for Desktop and update the J-Link drivers from SEGGER J-Link Software. Baseball Bros