@camelme - What you are claiming is technically impossible (at this time). If you upgraded with a standard ipsw from Apple via iTunes, you will lose your soft unlock. The only possibility is that your upgrade never really happened (or completed), OR you had a factory unlocked iPhone to start with.
And for proof, you only have to look at the same link you posted, namely :
and look under the sub-heading "~SiNfuL iPhone Custom IPSW #4~", where it says:
"Also keep in mind that if you already updated your baseband to 05.11.07 then you will not be able to unlock your phone. You will only be able to unlock your phone using ultrasn0w if your baseband is still at 04.26.08"
@camelme - What you are claiming is technically impossible (at this time). If you upgraded with a standard ipsw from Apple via iTunes, you will lose your soft unlock. The only possibility is that your upgrade never really happened (or completed), OR you had a factory unlocked iPhone to start with.
And for proof, you only have to look at the same link you posted, namely :
http://www.sinfuliphone.com/showthread.php?t=3306
and look under the sub-heading "~SiNfuL iPhone Custom IPSW #4~", where it says:
"Also keep in mind that if you already updated your baseband to 05.11.07 then you will not be able to unlock your phone. You will only be able to unlock your phone using ultrasn0w if your baseband is still at 04.26.08"
Advise of something impossible is much worse !