I need to change my Screen Lock pin

I forgot my last Screen Lock Pin and now i want to change it but it keep asking me for the previous one and i am unable to lock my screen. What should i do ? Phone is working, WIFI connected and Google + Samsung Account already logged in. Please suggest.

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by selena.dubuque
1 hour ago
Last post by kiera60
37 minutes ago
Last post by clinton87
2 hours ago
Last post by kennedy.mayert
2 hours ago
Last post by mbins
37 minutes ago
Last post by rudy.lind
2 hours ago
Last post by gzulauf
2 hours ago
Last post by breitenberg.dedric
51 minutes ago
Last post by gottlieb.larissa
3 hours ago
Last post by vkuphal
2 hours ago
Last post by nbaumbach
4 hours ago
Last post by mekhi05
33 minutes ago