Haier D900 User Manual - Page 13
Haier feature, Care and Maintain - cdma
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D900 User Guide 12. Haier feature Before accessing 'Menu items lock code' and 'Incoming call guard' functions, you will be asked to enter lock code. Default lock code is 000000, but you can change the code in security menu. 12.1 Menu items lock code You can protect important information in the mobile phone from using by others. It can be set to enter the lock code before opening the particular locked menu phone. The information includes Messages, Contact, Call history, Alarm clock and Scheduler. 12.2 Incoming call guard This function is used for screening incoming call. In simple words, your phone can restrict the callers after saving the mobile numbers in the black/white lists. 13. UTK This function is the mobile service provider's value added service for CDMA enabled phones. 14. Care and Maintain If your mobile phone had abnormal conditions, please check it with the following table. If the problem still remains, please ask mobile phone sales for help. Common problems Check item Can not charge Please check if the charger is properly connected to the phone and the power source jack. Please check if the battery level is too low; Can not power on Please check if the battery is properly loaded; Please press the power key enough time. Insert the RUIM card but can not read the Please check if your RUIM card is properly inserted; information in the RUIM Please check if your RUIM card is valid. card Can not make phone Please check if the phone number is valid; call Please check if you are in service area. Please check if the phone signal is strong enough; Weak talk quality If you are in the building, please move to an open space or near the window. The contact can not get Please check if your mike has been blocked by fittings or other your voice when making blocks. phone call The screen display the Please check if you are in a weak signal area (in the channel or information such as "No surround by buildings), change the area and retry. Please check if 13