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ZTE Corporation A35PLUS Manuale Utente

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6   Troubleshooting 
This section describes how to troubleshoot some problems when they occur to 
your phone. If you cannot deal with them, contact your local dealer. 
1. 
“Enter PIN 1 code” is shown when the phone is switched on. 
Input the PIN or input the new PIN 1 if you have changed the code. The code can 
be set “off” if you do not want to input. 
2. 
“Insert SIM” is shown when the phone is switched on. 
Turn off your phone and make sure that you have inserted a valid SIM card. 
3. 
“UNLOCK” is shown when the phone is switched on. 
Press UNLOCK and then enter the handset lock code. 
4. 
No key tone volume when pressing keys. 
Check the keypad setting in the profile. 
5. 
No incoming ring tone. 
Check the ringing tone and ringing volume settings in the profile. 
6. 
No alarm tone when the reminder time reaches. 
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