5
No service 
 No suitable network. 
No (U)SIM card 
 (U)SIM card not inserted or the 
device cannot recognized the 
(U)SIM. 
Invalid (U)SIM 
card 
 The (U)SIM is out of service. 
Network signal 
 
 Indicate the signal 
strength of the network. 
Network type 
 
 GSM/GPRS, 
UMTS.