With the SPA501 firmware upgrades. Unlike the other SPA5xx phones this one doesn’t have a LCD screen, so we are concerned that a customer may reboot the phone during a firmware upgrade initiated from the remote config file, since they don’t realize that there is a firmware upgrade taking place.
Is there a way to give the user a warning that there is a firmware upgrade happening ? Does the phone save the new firmware image and verify it before deleting the older firmware image ? Or does it delete old one and copy in the new one, so if someone reboots the phone during this process it’ll stop working?