Android 9 update for Xperia 1
IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.
Information
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This system software update build number is Xperia® 1: 55.0.A.10.26
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This system software update features the Android™ security patch level: October 1, 2019.
Solution
Updating your device
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When a software update is available, the new software icon
appears in the status bar.
Tip: To check the software version of your device:
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Tap Settings → System → About phone → Build number.
Download and update your device from the Notification panel
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If you are using a device with multiple users, make sure to log in as the owner.
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Drag the status bar downwards to open the Notification panel.
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Scroll down and select the wanted system update, tap the item and then tap UPDATE.
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When the download is finished, open the Notification panel again. If it is closed, tap RESTART.