Samsung Galaxy S4 User Manual page 206

Important! When roaming abroad, you can only download
update via the Wi-Fi network.
4. At the Software update prompt, touch OK to continue.
5. The phone automatically updates the software (if
available), otherwise, when the The latest updates have
already been installed prompt is displayed, touch OK.
6. When updating software, once the update file is
downloaded, you can delay the update on the start
screen by postponing it for a certain period of time. If
you want to resume the update before the selected
time, touch Continue update.
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Details
Touch options to view details:
• Status: View Battery status, Battery level, Network, Signal
strength, Mobile network type, Service state, Roaming, Mobile
network state, My phone number, MIN, PRL version, MEID,
IMEI, ICCID, IP address, Wi-Fi MAC address, Bluetooth
address, Serial number, Up time, and Device status.
• Legal information: Display open source licenses, configure
license settings, including your DivX VOD registration, and
Google info.
• Device name: View and/or change the device name you
assigned to your device during intial set-up.
• Model number: View your phone's model number.
• Android version: View the firmware version of your phone.
• Baseband version: View the baseband version of your phone.
• Kernel version: View the kernel version of your phone.
• Build number: View the build number of your phone.
• SELinux status: View the status of SELinux on your phone.
• Secure boot status: View the booth status type on your phone.
• Hardware version: View the hardware version of your phone.