Need Help Upgrading To New ROM

[Acedooncoon]

What up people..I have the sprint Mogul and I'm really really tempted to flash my phone to get the new 6.1 ROM..Im not 100% ready but very close to it (90%). Anyway, I was reading a few post on here as far as upgrading but I was unable to find what Im looking for...one of the post said that you need to copy down your "MSID/MDN/EPST Codes"..Where do I find this? I looked through my phone but couldnt find anything..I also saw something on another post saying that you have to press ##33284# or ##3282#...I also read somewhere else that if you hit ##778# or ##778 it will bring up the "EPST configuration menu"..I did all of those and nothing happened ..What am I doing wring? Can someone please help me ..Thanks.