#1: SamMobile.com It's not official website! (be very careful, unofficial things its not secured)
I don't know, why people are saying its official???
More information: Samsung Members =>Get Help => Live Chat
#2, If you manually, upgrade/downgrade firmware/software from various websites!
You're in risk in security, e.g credit/debit card and personal video calls are not secured!
Because, may be someone changed(OS Program)!
#3, Never believe, all methods! sometime mislead people to hijack something like data(advertise etc)!
#4, Never Change, IMEI for unclock device! Because its unlawful! It's Crime! and sometime, you'll go to jail! If same imei user, do anything wrong activites!
*If any mistake in my english, So, Advance Sorry!*
