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6.6 Weak signal
1. If the local network signals are unstable, the signals the mobile phone receives won’t be stable. Please move to
other places and try again.
2. Please contact ××× Service Center or ××× Maintenance Department if the above method is invalid.
6.7 Can’t make a call
1. The local network signals are weak and please move to places with strong signals and try again.
2. Local network operator is busy. Please try again later.
3. Check whether Hide Number is enabled. You can’t make a call if the local network operator doesn’t support this
function and you have enabled it.
4. Please contact ××× Service Center or ××× Maintenance Department if the above methods are invalid.
6.8 Standby time becomes short
1. The standby duration depends on the intensity of local network signal.
2. It is affected by environment temperature, base station distance, etc.
Appendix
Abbreviation and Explanation
GSM
Global System for Mobile Communications
SMS
Short Messaging Service
SMS-CB SMS Cell Broadcast
WAP Wireless Application Protocol
FDN
Fixed Dial Number
SIM
Subscriber Identity Module
PC Personal Computer
PIN Personal Identification Number. Usually refer to PIN1. It is provided with SIM card and the code to access
SIM card.
PIN2 Personal Identification Number 2. Provided by network operator. It is used for special functions, e.g. SIM
supported FDN.
PUK Personal Unlock Key. Provided along with SIM card. It is used to unlock the SIM card if you input invalid
PIN code for three times continuously, or used to change PIN code.
