Downgrade iOS 5 beta 2 to 4.3.3?

[128MB]

I know beta 1 was downgradeable. Anyone with beta 2 tried?

Thanks!

 

[jpetticrew]

They will all be downgradeable. You just have to put your iDevice in DFU mode and click restore in iTunes, since Apple is still signing iOS 4.3.3 and its baseband.

 

[128MB]

Nice! Thanks for the quick response. Silly question - why then could we not downgrade previous betas since Apple was still signing the current version back then?

 

[vertigo235]

you don't even have to put it in DFU mode, I'm restoring 4.3.3 right now

 

[vertigo235]

Nice! Thanks for the quick response. Silly question - why then could we not downgrade previous betas since Apple was still signing the current version back then?

I think the baseband changed? but I'm not sure

 

[theturtle]

i hate when i sound like a dumb noob but i too was wondering how to downgrade beta 2 to 4.3.3. Im using itunes beta 2 and i put my phone in DFU mode but after a long wait, i get the dreaded 1603 error. Any help on what to do?

 

[Phil A.]

I downgraded my iPhone and iPad last night using iTunes 10.5 beta 2 on my iMac. Here's what I did:

1) Put the device into recovery mode (not DFU mode) which I did because I was too lazy to locate the firmware myself
2) When iTunes started up telling me I had a device in recovery mode, I clicked Restore and confirmed that I wanted to restore.
3) There is no step 3: That's all I did and it worked fine

 

[WeegieMac]

Been to beta 2 and back twice now, and will be staying on beta 2 as it's far smoother than 4.3.3 from my experience.

 

[Solei]

I got a copy of iOS 5 Beta and Beta 2 from a Friend who's a Developer. So they are legit copies with updated hard ware numbers. I am trying to go back to 4.3.5 for a couple reasons...

1. iOS 5 is buggy and most apps don't work that i use on a regular basis

2. It expired today and I can't get a copy of Beta 3 for a week or so, so my phone is useless..

I try and follow your steps to go back to iOS 4, and it says that I am not eligible for the requested build.

Any ideas?

 

[Saberon]

Apple isn't signing 4.3.3 anymore, you MUST downgrade to 4.3.5

 

[itsalexaye]

Apple isn't signing 4.3.3 anymore, you MUST downgrade to 4.3.5

maybe other people should have said the most recent public iOS release a.k.a. 4.3.5 not 5b4