Downgrade 1.1.3

[machurdler]

I just restored my phone to 1.1.3. Then, I called up ATT and deactivated the phone and removed the data plan. I thought I could jailbreak my phone again and just use my ATT service without the data plan, but I can't seem to downgrade... Could someone help me?

Whenever I try to downgrade, now it says, "The iPhone could not be restored. An unknown error occurred (1)."

Is it still possible to downgrade? And jailbreak so I can use another sim?

 

[BigDaddy5]

Not possible yet. See here:
https://forums.macrumors.com/threads/416964/

 

[machurdler]

Not possible yet. See here:
https://forums.macrumors.com/threads/416964/

Dang... so right now I can't use my iPhone unless I get the data plan I just got rid of?

I should have just restored to 1.1.1, right?

 

[machurdler]

So there is no way to just activate it without getting the data back?

 

[machurdler]

I don't know if this matters for me to get the answer to my question, but I managed to downgrade and jailbreak 1.1.2, but when I put the sim in it says

This iPhone must be used with an approved SIM.

I am using an ATT Sim... can anyone help?

 

[FSUSem1noles]

Once you upgrade to 1.1.3, if you downgrade your iphone, you lose all phone capabilities. You get an itouch...

There is no known working downgrade method yet from 1.1.3...

 

[BamaATL]

Once you upgrade to 1.1.3, if you downgrade your iphone, you lose all phone capabilities. You get an itouch...

There is no known working downgrade method yet from 1.1.3...

This is not accurate any longer.
I have successfully restored my 1.1.3 back to a jailbroken 1.1.1 and then updated to jailbroken 1.1.2 using methods described in this forum as well as other sites. Full "phone" functionality is restored.

 

[SnakeXs]

This is not accurate any longer.
I have successfully restored my 1.1.3 back to a jailbroken 1.1.1 and then updated to jailbroken 1.1.2 using methods described in this forum as well as other sites. Full "phone" functionality is restored.

How?

 

[BamaATL]

There are a couple different tutorials. They do the same thing mostly.

You have to restore to 1.1.1. May have to do this twice, I did.
Activate via hack to enable Wifi.
Jailbreak.
Downgrade baseband.
Restore to 1.1.1 again. Phone is fully functional at this point.
Jailbreak.
Update to 1.1.2
Jailbreak.

Here are a couple tutorials

http://www.modmyifone.com/forums/showthread.php?t=25695&1.1.3+downgrade


http://iphone.unlock.no/#how-to-downgrade-1.1.2-or-1.1.3

 

[bbplayer5]

I downgraded my 1.1.3 to 1.1.1.

 

[SnakeXs]

I'm trying like normal and I just get Error (1). This is both in OS X and XP.

 

[BamaATL]

You aren't putting it in the correct restore mode. Read the links above regarding getting the phone in DFU mode.

 

[machurdler]

If you have 4.6 BL (1.1.2+ OTB), then you are currently stuck with a glorified iTouch if you downgrade. That's what I was able to do, but I need my iPhone back as a phone, I wish they would just release the 1.1.3 jailbreak. =/