Troubleshooting - Huawei M750 User Manual

If you encounter any problem when using your phone, try to
rectify the problem according to the following table. If the
problem persists, contact the service provider or the dealer.
Problem
The battery cannot be
charged.
The phone cannot be
powered on.
You cannot make a call
except an emergency call.
Bad call quality.
During a call, the other side
cannot hear your voice.
The signal strength is not
strong enough or your
phone is often off line.

15 Troubleshooting

Ensure that...
The charger is properly connected
to your phone and the power
socket.
The battery power is sufficient.
The battery is properly installed.
Press and hold
 The phone number is correct.
 You are in the network
service area.
 You have not enabled the call
restriction function.
 The signal strength is strong
enough.

If you are staying indoors,
move close to a window.
The microphone is not covered.
 The antenna is in a good
condition.
 Move close to a place with
strong signal strength.
.
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