Troubleshooting - Zte E520 User Manual

16. Troubleshooting

Fail to power on the phone
Check whether the battery has adequate capacity to power on.
The phone has powered off automatically
The battery capacity is quite low. Please charge the battery.
Can not connect to the network
Check whether the phone is in the CDMA network service area or move to other places to
try again.
No key tone when pressing the keys
Check whether the keypad tone has been disabled. You can set key tone settings by se-
lecting Menu→Settings→Sound Settings→Keypad Tone from Home screen.
No incoming ringtone when receiving a call
Check whether the phone is set to Silent Mode or the phone volume is turned off by press-
ing the Volume Keys.
Can not send a message
Check the status of the network.
Can not receive a new message
Check whether the network condition is OK, then check whether the Inbox is full. If you turn
off the Auto Delete Inbox function, you may not receive new messages when the inbox is
in full status.
You should delete some messages and change the settings by selecting Menu→Messag-
67