Instructions

You can change PIN1 code only if the security is enabled. Then you can see a button named
Change. Press this button,
you will see the following dialog, just fill in the field and press OK.
Note that enter wrong old PIN1 code will also deduce the retry times.
Unblock:
In some cases you failed to provide correct PIN1 code, and there is no chances left to retry,
the SIM card is blocked.
Then you have to unblock the SIM card use this function, otherwise you can access no data
on that SIM card.
Press on the Unblock button, you will see the following dialog, very similar with Change PIN
dialog:
Note the first thing you have to provide is the PUK1 code. This action is dangerous, if you
didn’t provide the correct
PUK1 code for 10 times, your SIM card will be blocked for ever. If you don’t know what you
are doing, we suggest
you don’t do anything but press Cancel, and contact you card provider on how to unblock
your SIM card.