HTC One M9

HTC One M9

I can't make voice calls - HTC One M9

Cause 4 of 9: Your phone is set to connect to 3G networks only.

If your phone is set to connect to 3G networks only, it can't find a network if you're in an area with poor or no 3G network coverage.

Solution: Change network mode to allow your phone to connect to both 2G and 3G networks.

Step 1 of 5

Find "Network mode"

Slide your finger down the display starting from the top edge of your phone.
Press the settings icon.

Step 2 of 5

Find "Network mode"

Press Mobile data.

Step 3 of 5

Find "Network mode"

Press Network mode.

Step 4 of 5

Select network mode

Press 3G only, 2G only, 2G/3G auto or 2G/3G/4G auto.

Step 5 of 5

Return to the home screen

Press the home icon to return to the home screen.

1 Find "Network mode"

Slide your finger down the display starting from the top edge of your phone.
Press the settings icon.
Press Mobile data.
Press Network mode.

2 Select network mode

Press 3G only, 2G only, 2G/3G auto or 2G/3G/4G auto.

3 Return to the home screen

Press the home icon to return to the home screen.

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