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Thread: Downgrade 1.1.2 to 1.1.1
11-28-2007, 11:49 AM #1Downgrade 1.1.2 to 1.1.1
Can anyone tell me how to downlgrade from 1.1.2 to 1.1.1 and have the phone be functional at 1.1.1?
11-28-2007, 11:58 AM #2
Is the phone unlocked already?
11-28-2007, 12:05 PM #3
11-28-2007, 02:31 PM #4
it is an OTB 1.1.2. I am not trying to unlock it, just trying to get it to work on 1.1.1. Even that is not possible?
11-28-2007, 02:39 PM #5
11-28-2007, 03:18 PM #6
i got it downgraded to 1.1.1 and jailbreaked it, but when i pop my ATT sim card in there it says no service. i used this guide. Can someone show me how to downgrade a OTB 1.1.2 to 1.1.1 and have it working with an ATT sim card?
11-28-2007, 03:24 PM #7
See my guide, you dont need to downgrade anymore
11-28-2007, 03:26 PM #8
is it a legit and working sim with at&t?, that guide just lets you downgrade to 1.1.1, jailbreak install OktoPrep then you have to upgrade back to 1.1.2.
11-28-2007, 03:28 PM #9
11-28-2007, 04:35 PM #10
11-28-2007, 05:03 PM #11
i can't get my phone to downgrade. I dont get error 1015, instead i get an unknown error (1)
11-28-2007, 06:21 PM #12
These are the first five digits in my Serial# 83747
Is this 1.1.2 with the new basband?
11-29-2007, 04:08 PM #13
yes i do have a legit and working sim with at&t.
that guide just lets you downgrade to 1.1.1, jailbreak install OktoPrep then you have to upgrade back to 1.1.2
Last edited by lazyazn; 11-29-2007 at 04:08 PM. Reason: Automerged Doublepost
11-29-2007, 05:40 PM #14
i get the same error message, ibrickr will boot up the phone but it won't activate in iTunes on 1.1.1 for some reason! cant figure it outHit Thanks!
11-29-2007, 06:15 PM #15
If you are on 1.1.2 and want to downgrade, this guide will show you how. It will take your firmware and baseband back to 1.0.2,then you can upgrade back to 1.1.1 if you choose to. Start at 1.1.2 out of the box.
11-29-2007, 08:03 PM #16
11-29-2007, 09:36 PM #17
these guys tried it. http://www.modmyi.com/forums/showthread.php?t=18592
Last edited by vincent6396; 11-29-2007 at 09:39 PM.
11-30-2007, 06:25 AM #18
11-30-2007, 08:16 AM #19
Then you can only jailbreak not unlock.
11-30-2007, 10:04 AM #201.1.2 OTB to 1.0.2
I have a friend's out of the box iPhone with FW 1.1.2 and want to activate and unlock it for use with any SIM. My own iPhone (August '07) had 1.0.2 and was easy to activate and unlock.
Can I downgrade 1.1.2 to 1.0.2 and use the old method or do I have to wait for a 1.1.2 hack?