If an update is available, an Update button will appear. Tap it.
Depending on the OS, you'll see Install Now, Reboot and install, or Install System Software. Tap it. Your phone will reboot.
If an update is available, an Update button will appear. Tap it.
Depending on the OS, you'll see Install Now, Reboot and install, or Install System Software. Tap it. Your phone will reboot.