How do I unblock my SAMSUNG GALAXY GRAND PRIME DUO PUK BLOCK...WHAT IS A PUK BLOCK??? HELP

[AC Question]

My phone has two sim cards and I was trying to download some contacts then my main lock screen popes up and said...PUK unblock code now???

 

[Laura Knotek]

Hi and welcome to AndroidCentral.

The PUK code may be obtained from your mobile provider.

 

[chanchan05]

PUK is your SIM card getting locked. You can replace the SIM card or as stated above, call your mobile netwotk carrier.