Unlocking Samsung e715

Do any of you have the unlocked or unbranded Samsung e715 firmware? I had t-mobile, but now i am part of my family's family plan which is under Cingular. I have a 1.8 version so codes do not work. If anyone has a firmware that allows me to use Cingular, pls help!

this is what i got in my software. i never try this but we have nothing to lose if we try.
turn off the phone.
put a non-accepted simcard.
turn it on
type *#9998*3323#.
press exit choose #7
after phone reboot type *0141# and hit the call botton.
turn off and insert another simcard. turn on.
the codes is 00000000
in newer phone: #*7337#

you can try here:

http://e710mod.altervista.org/pagine..._originali.htm

WHat are these exactly? They are for e710, but do they let me use cingular?

i have a 1.8 version. codes do not work. thanks though

I have an e715 and it's one of the best. I called TMo and they sent me the unlock code. There's a different code for every phone [I have 2 e715's]. If Cingular does not give you the unlock you should get rid of them.

yes! that's for e710. as i said i never try that yet and that's what i got to my 5.4 version.