After 3 months of phone service, ask MetroPCS , they give you the unlock code = free

Need it faster, eBay is usually cheap enough

 

From my own experience, a GSM MetroPCS phone, after 90 days of service on their system, you get a free unlock code. If it is in their system, and their phone, I don't think they would care who bought it.
The phone is paid off?

 

Your best bet is to simply take your phone to a nearby Metro PCS store and ask them to unlock it for you. They'll charge you a few bucks (I paid $20 to have mine unlocked early), then send in the request. After 2-3 days they'll receive the unlock code and can then apply it to your phone. I did mine this way last year when I had had the phone only 30 days and needed to unlock it for international use. I'm now using my Avant on Orange's LTE network with no problems here on Mauritius.

RCK

 

If you just need it to accept a t-mobile sim just flash the T-Mobile firmware with Odin and it should work

 

Got my code from Unlock.io. I'm now on h20 wireless.

 

You could also email metro or T-Mobile and they might send you an unlock code. That's what I did with my at&t note 3 I'm on now.

 

I had seen their unlock policies. I did not want to wait.