I had a Galaxy S3 (Metro PCS) recently given to me by my cousin. The thing is he reported it as lost, so they were to send him a new one (WHICH THEY NEVER DID) and in the time in between waiting he decided to leave Metro and switch to Sprint. I tried to activate it to Metro but they told me I couldn't. So Im guessing the IMEI is blocked. Is there anything I can do with this phone?