Microsoft Lumia 640 - Update your phone software

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Update your phone software

Stay in step with the beat – update your phone software and apps wirelessly to get new and

enhanced features for your phone. Updating the software may also improve your phone

performance.

Before starting the update, connect a charger or make sure the device battery has enough

power.

Warning: If you install a software update, you cannot use the device, even to make

emergency calls, until the installation is completed and the device is restarted.

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Using services or downloading content, including free items, may cause the transfer of large

amounts of data, which may result in data costs.
By default, your phone automatically downloads available updates whenever the data

connection settings allow it. When your phone notifies you that an update is available, just

follow the instructions shown on your phone. If your phone is short on memory, you may need

to move your apps, photos, and other stuff to the memory card. The memory card is not

supported by all phones. For availability, go to www.microsoft.com/mobile/support/

wpfeatures.

Tip: By default, your phone updates your apps and other components (such as device

hub) automatically when you’re connected to a WiFi network. To check your update

history, tap Store >

> downloads, and swipe to history.

After the update, check the Lumia Help+Tips app or support pages for your new user guide.
Switch off automatic update downloading

If you want to keep tight control of your data costs, you can switch off automatic update

downloading. On the start screen, swipe down from the top of the screen, tap ALL

SETTINGS > phone update, and clear the Automatically download updates if my data

settings allow it check box.