Currently if you send a remote command to devices to download/install iOS update and restart the device, it does not work on a device with a passcode. The user must manually install the update or approve the update to install. For supervised devices, it'd be nice if this remote command was able to temporarily clear the passcode so the iOS could actually be installed and restart, it could then re-assign the passcode to the device after it restarts. Otherwise this remote command is only partly effective. It's great for classroom sets that don't have passcodes, but that's about it.