This manual provides a detailed introduction to the use of the mobile phone, including appearance, key instructions, directory, safety instructions, accessories, SIM card installation, battery charging, power on or off, screen/main menu, screen and charging indicator, dialing, answering incoming calls, adjusting volume, functions used during calls, phonebook, editing phonebook records, using phonebook records, creating phonebook categories, classification protection, copying phonebook records, SMS sending, phonebook, call records, quick dialing, incoming call guard, network services, SMS operation, etc.