[Q] Thrill stock ROM and LG update software - Problems!!!!!Help, please

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Guys i am not sure if i can post this thread here... but here i am

I need help as i got an AT&T north american Thrill P925

I am Brazilian, and all our companies uses P920H

I'd like to have my phone at least in my language... so i tried to recover it using LGMobile Support Tool, but it tells me my phone can't support actualization....
"model can't support update"

i tried to change country to USA and language to english, but the same problem occurs

is tghere a way for me to have GB in my phone... or to have P920H software in portuguese?

my phone is rooted and i have CWM installed...
what more can i do to have my phone in portuguese-br or at least running GB?

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