thanks I didn't realise, I called my carrier but the said you need to be with them longer than 3 months. I can't find my other sim card which has been with them over a year
The easiest method of unlocking a handset is by code unlocking. This requires a number of details about the handset, including:
IMEI for the phone
Handset model
Network
Country
These details are used to generate your unlocking code, which is sent to you via email along with instructions on how to use it. Once keyed into your phone, any existing restrictions are removed.