Troubleshooting - Huawei C7300 User Manual

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Troubleshooting

Before contacting your network operator or phone distributor, you can
refer to the following table and troubleshoot your phone for the common
problems.
Problem Troubleshooting
The phone cannot Check that the charger is properly connected to the
be charged. phone and the power socket.
The phone cannot
Check that the battery power is sufficient.
be powered on.
Check that the battery is properly installed in the
phone.
Press and hold
After a UIM card is
Check that the UIM card is properly inserted in
inserted, the phone
the phone.
prompts you to
Check that the UIM card is valid.
check the UIM
card.
The UIM card is Contact your network operator for the PUK, and
locked. then use the PUK to unlock the UIM card.
You cannot talk on
You can talk on the phone through the headset
the phone through
only when the headset supports this function.
the headset.
Before using the headset to talk on the phone,
check that the headset supports the function.
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long enough.