what FW did i have? + how do i go back?

[ed1380]

so ive tried a few new firmwares, and i dont like them. they're just as laggy as the original one. i want to go back

i dont know if it was tmobile or unlocked. it had tmobile email and tzones and songid, but i WAS able to use mp3 as ringtones, and it DID have an outbox.

while i had it, it got a update and it installed it by itself.
i also remember it was "R6713_G_71.03"

i also have all the original .smg files, but i cant compile them into a .sbf. sbfcalc cant do it, and i dont know any othe progs.

help

BTW i downloaded this one http://motomoddinguk.info/showthread.php?t=1284
its #8
but im afraid of flashing it, cause ive heard of phones getting locked

thanks

[Exploited]

To revert back to original firmware you can flash any of the "Stock" firmwares on http://www.e2mod.com/e8/index.php/firmwares.html

They should not lock your phone...