Samples not working with nucleo board

[iznotek]

hye, i try to build the periodical_uplink sample with a nucleo_l476rg board as proposed in the readme but looks like there' no overlay file on the sample: i tried to adapt the only one found in hw-modem

/*
 * Copyright (c) 2024 Semtech Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 / {
    aliases {
        /* Specify which UART is used for communication (as input for the hw modem tester) */
        smtc-hal-uart = &usart3;
        smtc-watchdog = &iwdg;
        smtc-user-button = &user_button;
    };
};

&spi3 {
    status = "disabled";
};

/* Specify which UART is used for communication (as input for the hw modem tester) */
&usart3 {
    status = "okay";

    current-speed = <115200>;

    pinctrl-0 = <&usart3_rx_pc11 &usart3_tx_pc10>;
    pinctrl-names = "default";
    /delete-property/ hw-flow-control;
};

but the program appear to be locked on :

smtc_modem: Modem Initialization

( i disabled the watchdog to avoid reboot)

can you provide me some working solution... why samples are not all nucleo ready...? thanks

[iznotek]

Anyone please ?