Maxis E220 사용자 설명서

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17. To enable the PIN protect, select Active PIN from the menu on the top of the screen.
 

To disable the PIN protect, select Deactive PIN. 

 

18. And you can also choose “Modify” to change your PIN code while the PIN is activated. 
 

In the following dialog box, enter the current PIN code, the new PIN code and confirm  

 

the new PIN code. Then the PIN code is changed.