Update Your Phone - Samsung Galaxy S 4 User Manual

To preserve data on an optional installed memory card:
As an added precaution, to preserve any data on an optional installed microSD card, please remove it
from your phone prior to starting the update process. See

Update Your Phone

Use System Updates to update your phone's software, firmware, PRL (preferred roaming list), and more.
1. From home, tap
2. Tap System update to use these options:
Update PRL: Download and the latest Preferred Roaming List (PRL), used by your phone to

access the network.
Update Profile: Update the user profile related to your wireless service account. If you

choose to change your user name online, use this option to update the user name on your
phone.
Update Samsung Software: Upgrade to the latest software available for your device.

Update Firmware: Update your phone's firmware. Follow the prompts to download and

install the update.
UICC Unlock: Unlock your device's Universal Integrated Circuit Card.

Tools and Calendar
Apps > Settings > MORE tab.
Remove a microSD Card.
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