Phone Management & Connectivity; Update Your Phone Software - Microsoft Lumia 640 User Manual

Phone management & connectivity
Take care of your phone and its contents. Learn how to connect to accessories and networks,
transfer files, create backups, lock your phone, and keep the software up to date.

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.
Make sure that the device battery has enough power, or connect the charger before starting
the update.
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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