Qmi-firmware-update -
sudo apt update sudo apt install libqmi-utils
opkg update opkg install libqmi qmi-utils qmi-firmware-update
qmi-firmware-update --device=/dev/cdc-wdm0 --update /path/to/firmware.mbn For modems with separate application and modem firmware (e.g., Sierra): sudo apt update sudo apt install libqmi-utils opkg
qmi-firmware-update --device=/dev/cdc-wdm0 \ --update /path/to/modem_fw.bin \ --update-app /path/to/app_fw.bin If you backed up NV data earlier: qmi-firmware-update