User's Manual

Page 32
Appendix I Common fault diagnosis
Trouble
Possible reason
Can not be switched on
1. Need to charge the battery?
2. Battery is located correctly?
Battery can not be
charged
1.Check if the charger is connected with the phone
correctly?
2. The battery is usable? The battery performance will
degrade due to several years' use.
3. The battery is over-discharged. The handset will come
into the slow charging mode after connected to the
charger, this moment the handset has no display. The
handset can normally be charged hours later depending on
the degree of discharging.
Network lost
1. The signal is too weak，There may be some radio
interference all round. View whether the signal
strength meter on the screen fails to show vertical
lines.
2. The SIM card is located correctly, poorly contact or
damaged? (If damaged, please ask your network
supplier for replacement.)
Can not call out
1. Registered in the network? Check whether the screen
displays the name of your network supplier?
2. Call barring is enabled?
3. Calling prohibited due to call charges not paid?
4. You have activated the function of fixed dialing
numbers?
5. You have enabled the "Restrict my phone number",
and was rejected by the network?