[Q] Need help with Samsung Galaxy Light T339N Metro PCS topic

Okay, so heres my story.
I bought a Samsung Galaxy Light, SGH-T339N from the local Metro PCS Store, and yeah, it had a 4 for 100 dollars plan, and used Metro PCS networks.
A few days ago, with my phone rooted, and all working fine, I installed the stupid app called Chainfire 3d.
So yeah, it bricked my phone.
Me, being Mr. Dumbass, performed a factory reset, and wiping everything.
Well guess what.
My entire OS and every freaking thing was wiped.
So yeah, I turned to the internet for help.
I followed all of the instructions here:
http[colon]//androidforums.com/threads/guide-restore-your-galaxy-light-to-stock-mja[dot]846767/

And guess what, it turned my phone into a T-Mobile phone. Now, its saying No Sim Inserted, and I can't make any calls or texts, even though my SIM is perfectly valid and everything. It was working fine!!! Now I don't know what to do.

So to sum everything up, I'm stuck with a T-Mobile Phone and OS with a bunch of crap T-Mobile apps and stuff, (which used to be a MetroPCS phone and OS with MetroPCS apps), and a MetroPCS SIM card.

So what I'm thinking is that I need a Metro PCS, Samsung Galaxy Light, SGH-T339n stock rom with all of the Metro PCS stuff, so my SIM can start working on the phone.

So I would be VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY Happy if someone provided to me a file or link or something to restore my phone to its factory defaults so my perfectly valid SIM can start working on the phone and connect to the networks again!

Once again, I need a Samsung Galaxy Light SGH-T339N that runs on Metro PCS networks or has Metro PCS apps and stuff stock rom.
STOCK ROM

THANK YOU SO MUCH FOR HELPING, I'M REALLY VERY DESPERATE AND I DON'T HAVE THE MONEY TO GET IT FIXED