I have a Samsung GT - s3570. The problem is, when i insert a SIM card , the phone requires an unlock code. I tried different SIM cards but still same problem ... The phone works without SIM,I want to make it work with SIM CARD.
My question is: how can unlock the phone without going to a service? Financial situation does not allow me to send it to a service .If anyone has any ideas, please help me .
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