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The PIN (Personal identification number, 4 to 8 digits) code prevents your SIM card from being used by
unauthorized people. In general, the PIN is supplied with SIM card by the network operator. If PIN check is
enabled, you need to input the PIN each time when you power on your mobile phone. The SIM card will be
locked if you input wrong PIN code for three times.
Unlocking methods as follows:
-Input the correct PUK according to the screen tips to unlock the SIM card.
-Then input the new PIN and press the OK key.
-Input the new PIN again and then press the OK key.
-If the input PUK is correct, the SIM card will be unlocked and the PIN will be reset.
Note: The SIM card will be locked if you input wrong PIN code for three times. To unlock the SIM card,
you need to input the PUK. In general, the PUK can be obtained from the network operator.
◆ PUK
The PUK code (Personal Unlocking Key) is required to change a blocked PIN. It is supplied with SIM
card. If not, contact your network operator. If you input wrong PUK code for 10 times, SIM card will be
invalid. Please contact the network operator to replace the SIM card.
◆ Barring code
A barring code is required for setting the call barring function. You can obtain this code from the
network operator to set the call barring function.
3.2 Installing Memory Card
The Memory card is a pluggable mobile storage card inside the mobile phone.
