Troubleshooting - Huawei U3900 User Manual

12 Troubleshooting

If you encounter any problems while using your phone, refer to
the following table for potential solutions. If the problems persist,
contact your service provider or local device retailer.
Problem
The battery isn't
charging.
My phone cannot be
powered on.
I cannot make any calls
except emergency calls.
Poor call quality.
Ensure That...
The charger is properly connected to
your phone and the power socket.
There is an adequate amount of

battery power.
The battery is properly installed.

You press and hold

more seconds to turn on your
phone.
You are within your service

provider's network coverage area.
The call restriction function is

disabled.
You have good reception.

If you are indoors, move near a

window for better reception.
28
for 3 or