When sending an SMS command for a firmware update, if the Firmware on server - %fs flag is not true, the firmware update is not performed, only the modem restarts.
What is required, when receiving a firmware update command, the modem will check if there is a new version on the server, before the update process.
The problem is, if we don’t first check on the web that there is a new version, the %fs flag is NO, then the SMS command does not update a version.
If the result of the %fs flag is YES, it will update.