Hi there, if 1234 and 0000 are not work try code *2767*3855#
If fail, please visit this website : www.muskurahat.us/mobile/samsung_tricks_and_tips.asp
www.ehow.com > Electronics > Cell Phones > Reset Phone
forum.gsmhosting.com/vbb/f200/all-samsung-hard-reset-codes-588846/
www.unlock-zone.com
jay__hgvy