Still havent found a solution for my dead W580i

[JudgeMAN]

I would totally send it in to ATT for exchange, but they said if they found third party d/l they would charge me full price for my phone, which is like 250 bucks! I didnt d.l 3rd party stuff cuz I made it on my own, but I bet they will assume since it wasnt created by ATT that it is 3rd party.

Edit: I also tried to flash the phone with SETools with an erom file I d/l under main firmware I think...Is that bad? Will I have to reflash the main and fs to my phone? I appreciate all the inputs bc of what I said above ^ . But yall said I could send it in to SE? Would they charge me like ATT would for having non ATT files?

Edit 2: KKClient Log:

Press "5" and "2" keys, hold them together and plug DCU60 USB cable.
Phone Connected...
Detected: DB2020: A1 Series
Flash ID: 0x897E - Supported
EROM CID Detected: 52
Status:3
EROM Update Ok!
All Done! - Time:00:00:00

But still wont turn on, so Im guessing its not a corrupted EROM...Any ideas?