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From the Home Screen, select the Apps icon.
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In the Apps menu, scroll down and select Settings.
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In the Settings menu, scroll down and select About Phone.
 
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In the About Phone menu, choose the option for System Updates.
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You will be asked for a code. Please enter 23058518 and hit OK to continue.
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If a new update exists, you will be prompted to perform an update. Otherwise, you'll receive a screen indicating that the system is up to date.
 
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