What can I do if I set a Password, Pattern, Fingerprints or PIN on my Lock screen but forgot it? For Samsung Galaxy S4 users, here is an easy way to fix it without data loss. No need with Google or Samsung Account.
goo.gl/XafCEn
Work with all models of Samsung Galaxy S4: GT-I9500(Non-LTE), GT-I9505(International LTE), SCH-R970(US Cellular), SCH-R970C(Cricket), SCH-R970X(C Spire), SGH-I337M(Bell/Rogers/Telus), SGH-M919(T-Mobile), SPH-L720(Sprint), etc