Remove User Code & Pattern Lock
At Fast Remove SD Card And Sim Card Form Your Samsung Galaxy S Dous 2 Smartphone
Torn Off Your Mobile
Parse And Hold Power+Volume Up+Menu Keys
Hold Out All Keys When Samsung Logo Release
Android Menu Have Came
Select Factory Reset/Wipe Data (Using Volume Key) Parse Power Key To Conform
Select "Yes------Delete All User Data" Parse Power Key
Wait And Reboot Your Smartphone
OK Done