The unlock Code can be purchased from here: http://www.byimei.com/samsung-unlocking/samsung-sgh-e250i.html
This is not a free unlocking service, It's paid service.
( Please, do not enter this code into your phone, your phone have different code.
Entering the unlock code incorrectly many time, will result in the permanent lock of your phone )
The video was created to show: what is unlocking, how unlock works, how to enter the unlock code and so on...
These are instructions how to enter code to unlock, to unlock your Phone you need to have your own unlock code.
Note: The Unlock Code is difrent for each Phone don't try to enter this code into your Phone,
if you enter incorrect or wrong unlock code many time the Phone will be blocked.