Microsoft Lumia 640

Microsoft Lumia 640

Change settings - Microsoft Lumia 640

Troubleshooting

I can't use my phone as a Wi-Fi hotspot

I can't use Wi-Fi

Sound settings

Select ring tone

Turn silent mode on or off

Display settings

Select language

Set date and time

Connecting phone and computer

Transfer files between computer and phone

Wi-Fi

Connect to Wi-Fi network

Set up and use your phone as a Wi-Fi hotspot

Bluetooth

Pair a Bluetooth device with your phone

Transfer files via Bluetooth

Data usage

Turn data roaming on or off

Turn mobile data on or off

View data usage

Software update

Update phone software

Restart

Restart your phone

Restore factory default settings

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