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Discuss Old Blue AT&T SIM with 1.1.2/4.6 "incorrect SIM" or NO SERVICE at the iPhone "2G" (Rev. 1) - Hackint0sh.org; I'm pretty sure all I need is an appropriate lockdown file which Ive spent hours ...
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    Default Old Blue AT&T SIM with 1.1.2/4.6 "incorrect SIM" or NO SERVICE

    I'm pretty sure all I need is an appropriate lockdown file which Ive spent hours searching for, but i have an old blue att sim card that i'm trying to use with a new 1.1.2 iphone with the new bootloader. i have downgraded, ran oktoprep and reupgraded, but cant get it to see my old att sim card. any help?



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    The old blue AT&T sim will not work with the 4.6 iPhone unless you use turbosim or any other device such as that. I had the similar problem with a friend of mine but luckily she purchased her phone before the bootloader update and I was able to unlock her phone for her to use.

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    what SIMS will work with it?

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    it works but you have to restore it to 1.0.2 and den jailbreak and it will work .....i wanted to use 1.1.1 but it didnt work after jailbreak i'll just get no service...so i had to put 1.0.2 ..im using a ATT sim card /corporate account for some reason ATT doesnt allow us to have iphones.

    by the way i had tried cingular and the old blue att sim cards and it works 2 but only with 1.0.2, the 4.6 bootloader doesnt matter just for some reason it wont work with 1.1.1 or 1.2

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    its not that it doesnt work with 1.1.1 persay, the issue is that for whatever reason the modem from 1.1.2 refuses to run under 1.1.1 but it will run under 1.02. probably an attempt at preventing downgrading only they hadnt implemented everything needed for it in 1.02 (or made the decision to block it till then)

    so should you at some point gain access to changing the modem firmware on the new bootloader phones in the future you should beable to make 1.1.1 work just fine provided you can downgrade the modem.


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    i down graded to 1.0.2 and it still wont work, I get "incorrect SIM" any ideas?

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    Yeah the old ATT blue sims require the phone to be unlocked. Iphone only works with new ATT sims or old Cingular Sims.

    ATT Blue = old ATT Wireless
    ATT Orange = new ATT + cingular

    Just like an old ATT Blue sim will not work in any current phone ATT sells in there store unless you unlock it and it will not work in the Iphone either unless you unlock it either.

    Never seen so much wrong information in 1 thread on here. A simple search in General forum would have answered this question or reading the unlock FAQ questions too.

    btw tonytun ATT Blue sim's are sims that old ATTWS used before they got bought by Cingular. So only way to have an old ATTWS(blue Sim) is if you were with ATT pre 2003 and have not done any changes to your account. Having a Corp account or not has nothing to do with being able to use an Iphone my ATT account is with a Fan I get 22% off my primary line on a family plan. If I add an Iphone to my account I loose the discount as Iphone do not qualify for any discount. The fact you have a Fan(corp Account) does not determine the Sim you have. Which company you signed up with and when determines what sim you have. Ie if you signed up with PBMS back in 1999 that sim will work fine with a locked Iphone as that was original name of Cingular. If you signed up with ATT Wireless Services in 1999 then your sim will not work with of the currently locked ATT equipment.
    Last edited by dolmar; 12-18-2007 at 09:04 AM.

 

 

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