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iPhone 3GS Version 5.0 Baseband 06.15.00 Model MB715LL Was used for AT&T now want to use for Tmobile. What would be the proper procedure to successfully jailbreak and unlock this...
04-12-2012, 09:20 PM #1Do I JB first and then Unlock? (3GS)
Was used for AT&T now want to use for Tmobile. What would be the proper procedure to successfully jailbreak and unlock this phone?
04-12-2012, 09:25 PM #2
Jailbreak first then use ultrasnow to unlock
04-12-2012, 09:30 PM #3
Ok, so I will jailbreak the firmware 5.0 and then use ultrasn0w? I don't need a custom ipsw?
04-12-2012, 09:32 PM #4
If you stay on 5.0 no but whenever ya update ya firmware in the future yea you will need to preserve that baseband.
04-12-2012, 09:52 PM #5
On the ultrasn0w page in the devteam section and it says don't use redsn0w when using ultrasn0w? This is getting me confused.
I downloaded the latest redsnow. I will jailbreak the 3GS right now. and where can i download ultrasn0w? I can't find the link. Thanks.
04-12-2012, 10:08 PM #6
You download ultrasnow after jailbreaking on cydia
04-12-2012, 10:20 PM #7
This is wack! I JB it and it said it's currently tethered! How can i make this untethered instead?!
04-12-2012, 10:25 PM #8
You cant. 5.0 is tethered
04-12-2012, 10:29 PM #9
What firmware can i update it too to make it untethered? 5.0.1? or should i just update to 5.1?
04-12-2012, 10:31 PM #10
5.0.1 is untethered but you can only update to that firmware if you have the shsh blobs saved for it
04-12-2012, 10:44 PM #11
hmm... i just loaded cydia and the is says SHSH: iOS 4.1, 4.2.1r1, 4.3 and 5.0.1. Does that mean im good to upgrade? whats the next step?
04-12-2012, 10:53 PM #12
You can downgrade to 4.1 or update to 5.0.1.
To go to 5.0.1 Download tinyumbrella. And go to the advanced tab and make sure every option is checked except for the iphone 4 baseband option. Start tss server and update thru itunes.
Remember you have to make a custom firmware to preserve baseband, di that with sn0wbreeze or redsn0w.
04-13-2012, 12:38 AM #13
if you were on AT&T and have iPhone 3GS then it must be a old phone.
You can ask AT&T to unlock you phone. They are unlocking contract free iPhones.
If you qualify then you don't need to use ultrash0w anymore. just need to jailbreak.
Hereís how to use AT&Tís online chat to unlock your iPhone
04-13-2012, 05:32 AM #14
If you have the old bootrom for the 3GS you can be untethered on any firmware.
04-14-2012, 03:31 PM #15
you must have already done summin as you state you have BB 06.15.00 which is ipad bb and cant be changed at the mo,but of course is unlockable..
04-14-2012, 06:52 PM #16
He'll always have to have it jailbroken so the baseband will work, no?