OPPO R9s

OPPO R9s

Android 6.0.1

I can't make voice calls on my OPPO R9s Android 6.0.1

Cause 1 of 12: The selected network mode is not available

If you've set your phone to use a specific network mode, it can't get a network connection if the selected network mode is out of range.

Solution: Turn on automatic network mode selection.

Step 1 of 6

Find "Preferred network type"

Press Settings.

Step 2 of 6

Find "Preferred network type"

Press Dual SIM and mobile network.

Step 3 of 6

Find "Preferred network type"

Press Preferred network type.

Step 4 of 6

Find "Preferred network type"

Press Preferred network type.

Step 5 of 6

Select network mode

Press the required network mode.

Step 6 of 6

Return to the home screen

Press the Home key to return to the home screen.

1 Find "Preferred network type"

Press Settings.

Press Dual SIM and mobile network.

Press Preferred network type.

Press Preferred network type.

2 Select network mode

Press the required network mode.

There may be different network modes available depending on where you are. If you set your phone to the fastest network mode, it will always find the network with the highest data speed and best signal.

3 Return to the home screen

Press the Home key to return to the home screen.

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