Shabbypenguin
Extreme Android User
How to return your Samsung Galaxy S III (R530M) to stock
These instructions should fix your semi-bricked or broken phone as long as you can get it into download mode. Make sure you have drivers already installed on your Windows computer before starting. Please read them all the way through and then begin.
Things you will need to restore your phone are below.
Download and use this version of Odin 3.04:
ODIN
Tar files needed to flash are in post #3
Set up the software:
Extract the odin-pit.zip
Run Odin3 v3.04.exe
Make auto-reboot box is checked:
Put your phone in Download Mode:
Power your device off
Make sure the usb cable is not connected (it tends to mess up due to charging animation)
Press and hold volume down, home and power
You will see a warning screen
Press volume up to contine to download mode
Connect USB cable

Odin should now look like this:

Uncheck F. Reset Time
Click on PDA and load R530M-VQA-LJ1.tar
You should now look like this

Now you should be able to click Start.
When you click start you should see something similar to this:

Your phone should auto-reboot when finished and should be working 100%!
This returns you back to factory stock, aka Metro has no idea stock, except your download counter (if its been tripped)
Troubleshooting:
Odin isn't detecting the phone?!
It seems frozen and hasn't made any progress for 15 minutesTry a different USB port
Take out battery and plug phone into computer and put into download mode without the battery installed
Uninstall the drivers, reboot, and reinstall the drivers
System.img.ext4 takes awhile but if it stays on that for longer than 15 minutes unplug the phone and remove the battery and start over