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It's recommended that you update your phone with the newest software, as the manufacturer continuously corrects errors. It's a good idea to back up the phone memory first. Before you can update the phone software, you need to set up your phone for internet.
1. Find "System updates"
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press About device.
Press System updates.
2. Update phone software
Press CHECK FOR UPDATE. If a new software version is available, it's displayed. Follow the instructions on the screen to update the phone software.