Microsoft Lumia 640

Microsoft Lumia 640

You can't make voice calls - Microsoft Lumia 640

Cause 8 of 9: You've turned on manual network selection and the selected network isn't available

If you've turned on manual network selection, you must be in range of the selected network to make a call.

Solution: Turn on automatic network selection.

Step 1 of 10

Find "SIM settings"

Slide your finger down the display starting from the top edge of your phone.Press ALL SETTINGS.

Step 2 of 10

Find "SIM settings"

Press mobile+SIM.

Step 3 of 10

Find "SIM settings"

Press SIM settings.

Microsoft Lumia 640
Step 4 of 10

Select option

Select one of the following options:Select network manually, go to 2a.Select network automatically, go to 2b.

Step 5 of 10

2a - Select network manually

Press the field below "Network selection".

Step 6 of 10

2a - Select network manually

Press search for networks.Your phone searches for networks within range.

Step 7 of 10

2a - Select network manually

Press the required network.Your display will tell you if you've access to the network you've chosen.

Step 8 of 10

2b - Select network automatically

Press the field below "Network selection".

Step 9 of 10

2b - Select network automatically

Press automatic.Wait while your phone finds the network.

Step 10 of 10

Return to the home screen

Press the home icon to return to the home screen.

1 Find "SIM settings"

Slide your finger down the display starting from the top edge of your phone.
Press ALL SETTINGS.
Press mobile+SIM.
Press SIM settings.

2 Select option

Select one of the following options:
Select network manually, go to 2a.
Select network automatically, go to 2b.
Microsoft Lumia 640

3 2a - Select network manually

Press the field below "Network selection".
Press search for networks.
Your phone searches for networks within range.
Press the required network.
Your display will tell you if you've access to the network you've chosen.

4 2b - Select network automatically

Press the field below "Network selection".
Press automatic.
Wait while your phone finds the network.

5 Return to the home screen

Press the home icon to return to the home screen.

Did this solve the problem?

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