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Can you downgrade from iOS 5 Beta 5?

iWannaBeAdored

iWannaBeAdored

macrumors 6502
Original poster
Apr 25, 2010
281
0
Scotland
I have an appointment to see an Apple Genius tomorrow to fix my home button (you need to press it in really really really hard for it to work). I am on iOS 5 Beta 5 and I bought a slot from eBay so if they had to ask me any questions about the developer who has registered me, I'm screwed.

Can I downgrade to iOS 4?
 
Yes, download the latest IPSW 4.3.4 if AT&T. Put your iPhone into DFU mode, not recovery mode, DFU mode. Look up some videos on YouTube and they will show you how. Once it's in DFU mode you can select the IPSW and install it that way.
 
Small correction, it's 4.3.5 with AT&T. You must downgrade to the current 4.x firmware.

4.3.3 will not work
4.2.1 will not work

It *must* be 4.3.5 or 4.2.10 with verizon
 
Thanks. I put my device into DFU mode. iTunes said I had to restore it, I clicked restore which would restore my device to 4.3.5. However, I get error 2005. When I Google the error code, it is a hardware issue. I've moved the sync cable into a different USB port but I still get the 2005 error.

I'm on iTunes 10.4.1.
 
iWannaBeAdored said:
Thanks. I put my device into DFU mode. iTunes said I had to restore it, I clicked restore which would restore my device to 4.3.5. However, I get error 2005. When I Google the error code, it is a hardware issue. I've moved the sync cable into a different USB port but I still get the 2005 error.

I'm on iTunes 10.4.1.
Click to expand...

man that sucks
 
Last time I was in DFU mode it didn't tell me I had to restore, perhaps you aren't in DFU mode?

Also, have you ever used TinyUmbrella on your computer?

Are you using a USB hub/expander/keyboard USB port? Are you plugging directly into your computer.
 
Plugged directly into my tower. I used TinyUmbrella on my iPad 2.

When I run the TSS server, I get iTunes error 2005.

When I do not run the TSS server, I get "The iPhone 'iPhone' cannot be restored at this time because the iPhone software update server could not be contacted or is temporarily unavailable."
 
Yup, that's what screwed it up. Your hosts file has been changed so that you can't contact apple normally. You don't need any special software to get into DFU mode.

Do you have a mac or PC?
 
Not sure how technologically savvy you are but I hope this makes sense.


Navigate to C:\Windows\System32\drivers\etc

Double click on file called hosts

If it asks you which program to open with choose WordPad

Remove any lines that say something like gs.apple.com

hit save

Reboot COmputer


Plug in iPhone..DO NOT RUN anything like TSS/Tinyumbrella

Put phone in DFU mode (http://osxdaily.com/2010/06/24/iphone-dfu-mode-explained-and-how-to-enter-dfu-mode-on-your-iphone/)

HOld shift and click restore

Locate the 4.3.5 firmware you downloaded

(iPhone 4 4.3.5 http://appldnld.apple.com/iPhone4/041-1966.20110721.V3Ufe/iPhone3,1_4.3.5_8L1_Restore.ipsw)

(iPhone 3GS 4.3.5 http://appldnld.apple.com/iPhone4/041-1965.20110721.gxUB5/iPhone2,1_4.3.5_8L1_Restore.ipsw)
 
Last edited:
Saberon said:
Not sure how technologically savvy you are but I hope this makes sense.


Navigate to C:\Windows\System32\drivers\etc

Double click on file called hosts

If it asks you which program to open with choose WordPad

Remove any lines that say something like gs.apple.com

hit save

Reboot COmputer


Plug in iPhone..DO NOT RUN anything like TSS/Tinyumbrella

Put phone in DFU mode

HOld shift and click restore

Locate the 4.3.5 firmware you downloaded

(iPhone 4 4.3.5 http://appldnld.apple.com/iPhone4/041-1966.20110721.V3Ufe/iPhone3,1_4.3.5_8L1_Restore.ipsw)

(iPhone 3GS 4.3.5 http://appldnld.apple.com/iPhone4/041-1965.20110721.gxUB5/iPhone2,1_4.3.5_8L1_Restore.ipsw)
Click to expand...

iTunes should just download the correct firmware for you if you can't find it online as well.
 
That may be true but I'm giving him the instructions that I've used over and over with success. :cool:
 
Saberon said:
Not sure how technologically savvy you are but I hope this makes sense.


Navigate to C:\Windows\System32\drivers\etc

Double click on file called hosts

If it asks you which program to open with choose WordPad

Remove any lines that say something like gs.apple.com

hit save

Reboot COmputer


Plug in iPhone..DO NOT RUN anything like TSS/Tinyumbrella

Put phone in DFU mode (http://osxdaily.com/2010/06/24/iphone-dfu-mode-explained-and-how-to-enter-dfu-mode-on-your-iphone/)

HOld shift and click restore

Locate the 4.3.5 firmware you downloaded

(iPhone 4 4.3.5 http://appldnld.apple.com/iPhone4/041-1966.20110721.V3Ufe/iPhone3,1_4.3.5_8L1_Restore.ipsw)

(iPhone 3GS 4.3.5 http://appldnld.apple.com/iPhone4/041-1965.20110721.gxUB5/iPhone2,1_4.3.5_8L1_Restore.ipsw)
Click to expand...

Yeah I already had 4.3.5 on my desktop. Worked like a charm. Thank you very much. I'm actually an IT student! I've just not had to delete hosts or use TinyUmbrella in a good while!

Am I able to restore from a backup created on iOS 5? I'm guessing not.

Thanks for your help.
 
I fix computers for a living and spend 99% of my time dealing with people who don't know a thing about computers, so excuse me if I sounded like I was talking to an infant lol!

So glad to hear you got it going! Very unlikely you can restore from iOS 5 backup.
 
iWannaBeAdored said:
Yeah I already had 4.3.5 on my desktop. Worked like a charm. Thank you very much. I'm actually an IT student! I've just not had to delete hosts or use TinyUmbrella in a good while!

Am I able to restore from a backup created on iOS 5? I'm guessing not.

Thanks for your help.
Click to expand...

I don't think so, but then again I've never tried.
 
Saberon said:
I fix computers for a living and spend 99% of my time dealing with people who don't know a thing about computers, so excuse me if I sounded like I was talking to an infant lol!

So glad to hear you got it going! Very unlikely you can restore from iOS 5 backup.
Click to expand...

That was fine, easy to follow if anyone else in my position reads this thread!

Guess I'll give it a try.

Update: Didn't work. Backup "too old" haha. Just using a different backup now. Cheers!
 
I did this a few betas ago. I could be wrong, but I think the key is to have the most recent public version of iTunes when when you try to restore.
 
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