First try it:ur defalt phone code is 12345 or 00000 or 0000 u can use it
Default 4 Digit user code: 1234 or 0000
Type *#7370# or*#7780# on your phone & then select Yes.
The best way to unlock your GSM phone is using an unlock code. I have a cellphone store and the fastest way to unlock a phone without loosing any data is to use an unlock code.
Every phone has its own unique unlock code that is calculated using your phone's IMEI number.
The cheapest and most reliable site I know (which I also personally use) is called:www.unlock2go.com
Be careful as there are a lot of frauds on the internet that sell you fake unlock codes, so you have to know where to buy them. I suggest you use this site.