phone is suitable to the condition of our country

phone is suitable to the condition of our country.
Many different types of cell phone password, such as PINI (or PIN), PIN2, PUK1 or PUK), The PUK2, the phone is switched password SIM card unlock code. Many users of these passwords are not very clear, do not know their function and the set / release caused some inconvenience in use. Re-introduced to a variety of password, we should first understand the following two concepts: network operators and suppliers (called network service providers). The network operator is responsible for the organization of the normal work of the GSM (Global System for Mobile Communications) network, different countries have different network operators in China, the largest network operators China Telecom. The supplier is responsible for cell phones into the institutions of the GSM network, it is common to China Mobile and China Unicom (leased telecommunications network). phone only shields the cell phone signal and will not influence other electronic equipments and stereo devices.
For users, we have only come into contact with the suppliers, so the phone has any problems (except the phone itself), only to find China Mobile and China Unicom can be solved. Mobile Password: mobile phone password is used to prevent unauthorized use of mobile phones, "Security settings" / "power-on password / phone password to open this feature, the phone is switched on will need to enter the phone password may use only the password is this machine's own set. The general phone password The default value is 1234 (such as the Motorola T2688) or 0000 (such as the Panasonic GD90 and Samsung 600C). PIN1 code: the PIN1 code is provided by the supplier for the SIM card the confidentiality of personally identifiable (Personqal the Identification Namber), "Security settings" / "power-on password / PIN 'this feature is turned on. It is blue-tooth FM wireless headset phone .
Enter the PIN1 code when the phone is switched on before use, only this password locked to the SIM card. The default value is 1234. Phone password and PIN1 code, then enter the PIN1 code, enter the phone password. PIN1 code three input error will be locked, you need to PUK1 code to unlock. PUK1 code: PUK1 code unlock code provided by the supplier of the PIN1 code string of an irregular thanks to a child, the PUK1 yards 10 times of mismatched, SIM card will always locked, but also have to change the SIM card. PIN2 code: PIN2 code is a SIM card provided by the supplier to another password, personal identification number used to restrict dial-up function, mainly used to eliminate the call cost data. Set the airtime billing currency and measurement units, the cost of limiting, limited dial-up. Here is the water-proof phone .