HOW YOU CAN UNLOCK ANY PHONE WITHOUT KNOWING THE SECURITY CODE

you will have to get the phone unlocking code or security code

after you met have gotten that press and hold the unlock button for a while make sure you dont  releasing  it.

then some thisg will display on the sreem of the phone saying press now  *

once you press the star  butten the phone will  unlock

  another method  it works only for serial and imei number of the phone 

first dial *#06# to get the imei or serial number of the phone.

now goto www.unlockitfree.com once the page open you will have to put your

imei or serial number of the phone then click on generate
Once done, a number will be generated, that's the master code for the phone, copy and keep the number this work even it you dont know the security of that phone.