M Phone User Manual | English
22 |
P a g e
Poor quality of conversation
Possible causes of trouble
Troubleshooting
Current signal strength changes
sharply.
Maybe you are in a status of moving at high speed (in
a train or motor, etc..), judge by signal strength
indicator and choose a place with strong signal
strength to communicate in order to assure
conversation quality.
You are in the location where signal
is badly received
Please go to the open place
Inability to answer mobile phone
Possible causes of trouble
Troubleshooting
Call forwarding is set.
Please cancel call forwarding according to your
demand.
Call barred is set.
Please cancel relevant barred function of Call barred
according to your demand.
Inability to dial mobile phone
Possible causes of trouble
Troubleshooting
Mobile phone is power off.
Please turn on your mobile phone.
Mobile phone is out of network
service area
Please confirm network is in normal service status.
Proper SIM card isn’t correctly
inserted.
Please confirm if your SIM card can be normally used.
Call barred is set.
Please cancel relevant barred function of Call barred
according to your demand.
Keyboard is locked automatically.
Please select left soft key+# key, unlock keyboard
Low conversation volume
Possible causes of trouble
Troubleshooting
The conversation volume is set too
low.
Please increase conversation volume.
The counterpart can’t hear you
Possible causes of trouble
Troubleshooting
Your microphone is too far away from
voice.
Put the microphone close to your mouth.
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