how to cheak my phone is unlock or not?
Simple instructions to check whether it's your phone is locked or unlocked.
1.Switch on your mobile phone with a sim card from a network other than the network you are currently with
2. If you are able to use the phone, you can be sure that your phone is not locked.
3.If your phone displays an error message saying "Wrong sim" or "Incorrect sim" or "Emergency calls only", etc., then your phone is probably locked.For unlocking visit
Unlock-free.com They will provide an unlocking service for old mobile models only.If you have newest version phone try Simpleunlocking.com