How to block any sim card

Blocking a sim card is too simple. What you have to do 

is just enter the below code in the desired phone

 
**04*3814*7529*68243#

Entering of above code will ask you to enter the PUK

code.To solve this issue just call customer care and get your PUK code.

Note:Entering of invalid PUK will cause permanent blocking of your SIM

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