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1, the menu settings fault: strictly speaking not fault, Buddha electric no response, may be the main set call transfer function; not to play the phone, whether the call restriction function. Motorola mobile phone calls only vibration without ringing fault, can through mobile phone menu "repair" tips for ringing call mode.4szservice manual download site
2, the use of fault: generally refers to the user to adjust the improper operation, the error caused by. More common are as follows:
1) mechanical damage. Because the operation is too hard or method is not correct, mobile phone devices caused by rupture, deformation, failure, cause and pin falling and other reasons in addition, flip off axis, aerials, shell breaking, inlet, display fracture also belongs to this kind of fault.
2) improper use. The use of mobile phone keyboard with a nail tip touch keys can cause the keyboard wear or even fall off, use inferior charger will damage the charging circuit inside the mobile phone, even cause accidents; illegal operation for mobile phone menu, the menu is closed, so that the mobile phone can not be normal use, the password is wrong, resulting in SIM card lock after that, try the SIM card protection deadlock.
3) improper protection. Mobile phone is a high-tech electronic products are very sophisticated, use should pay attention to use in the dry environment, suitable temperature and storage.
3, quality failure: some smuggled goods mobile phone after assembling, converted, the quality is low, some mobile phone although digital mobile phone, but it does not conform to the GSM specification, and therefore can not be used.
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