Build from the application folder, passing the board target from the Build targets table. For example, to build and flash 91m1_ppp on the nRF54L15 DK:
cd applications/91m1_ppp
west build -b nrf54l15dk/nrf54l15/cpuapp/ns -p
west flash --recover
Note
--recover and --erase wipe TF-M Protected Storage, so any installed device credentials are lost and must be provisioned again. After the first flash, use a plain west flash to keep the credentials in place.
The application is now built and flashed to the device. Open a serial terminal on the host console port to view the logs. The Serial Terminal app (part of nRF Connect for Desktop) is recommended; PuTTY, Tera Term, and minicom also work. The console port depends on the board — see the application guides below.