3.
Getting Started
What is a SIM card ?
While registering your mobile phone number, you will be
provided with a SIM card (Subscriber Identity Module) by
network operator.
The SIM card has information, such as phone number, PIN
(Personal Identification Number), PIN2, PUK (PIN Unlocking
Key is the password to unlock PIN), PUK2 (password to unlock
PIN2), IMSI (International Mobile Subscriber Identity) number,
network information, phone book data, SMS data and so on
reserved for your use. . If it is lost, contact your network
operator immediately for help.
PIN Code
PIN is usually a 4 digit password provided by your network
operator. It is usually 4 digits. When you input the PIN code, the
screen displays “*” to replace the number entered.
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