I forget my sim lock and please help me how can I rest it

SOURCE: How to remove Pin for SIM Lock

Your cell phone may be locked to a particular cell phoneprovider and in this case it needs to be unlocked to use with a different cellphone service provider.To get the security code/restriction code to unlock the cellphone from the current cell phone provider so you can use the SIM card with adifferent phone provider, Please click on this link and follow my instructions:-http://www.fixya.com/support/r4049238-unlock_cell_phoneIf yourphone provider does not help you then these WEB sites it provides securitycodes for a small price.http://www.mobileunlockstore.com/?gclid=CKDb2_y2558CFSlJagodxBkDHwhttp://www.mobileunlocksolutions.com/