Microsoft Lumia 640 - Use a high speed connection

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Use a high speed connection

Make the most of your network connections – use the fastest connection available and

supported by your phone.
Make sure your SIM card is inserted.
1. On the start screen, swipe down from the top of the screen, and tap ALL SETTINGS >

cellular+SIM.

2. Tap Highest connection speed to check that your phone’s fastest connection type is

selected.
The status bar at the top of the screen tells you the current connection type.