How to update the RC7620 firmware with "qmi-update-firmware"

IoT Modules RC76
33

so do you use the following?

  1. AT!BOOTHOLD
  2. ./fwdwl-litearm -m 4 -d /dev/ttyUSB0 -p /dev/cdc-wdm0 -t 1 -f /usr/wit/applic/update/