Jul 29
Man, being in iPhone SDK Developer program is like having no sex after getting married. Whole fun is gone. Its like fight club. “Do not talk about iPhone SDK…”. Anyway, i installed 2.1 on my phone and i had several issues on my phone. I desperately wanted to get back to iPhone OS 2.0. I tried all possible ways and this worked.
CRASH THE PHONE. Try to restore the phone back to 2.1 and disconnect it at the middle of it. Now connect iTunes and get the recent 2.0 update automatically when you sync.
Easy !!!
September 15th, 2008 at 12:17 pm
Did it work for you? I tried so many times, I didn’t get anywhere.
September 15th, 2008 at 12:57 pm
It should work. Otherwise, when you are restoring any version. Plug the phone out of the sync at the middle. that crashes the phone and you can do any restore after that. Now, after 2.1 release, you can’t go back to any other version anyway.
September 16th, 2008 at 11:19 pm
i can downgrade to 2.0.2 with this method. does anybody know how can i do?
September 17th, 2008 at 9:48 pm
can some 1 plz tell me how to downgrade from iphone3G 2.1, cuz this doesnt seem to work, or is there a trick to it, idk but if some one knows how to do this or any other way plz email me at halo2moder2010@aol.com, thank you
September 17th, 2008 at 9:52 pm
can some 1 plz help me downgrade from my iphone3G 2.1, cuz this doesnt seem to work, or is there a trick to it, idk but if some one knows how to do this or any other way plz email me at halo2moder2010@aol.com, thank you
September 17th, 2008 at 9:53 pm
can some one plz help me downgrade from my iphone3G 2.1, cuz this doesnt seem to work, or is there a trick to it, idk but if some one knows how to do this or any other way plz email me at halo2moder2010@aol.com, thank you
September 27th, 2008 at 1:31 pm
I tried to downgrade iphone3g2.1 and when it finished I got the error (1013) and the phone was ready to restore again (conect to itunes on screen)I when back to 2.1 without error. Does anyone knows a different way to do it???
September 27th, 2008 at 3:08 pm
Windows XP:
- Download iPhone OS 2.0 from somewhere
- Try the above
- When connecting to iTunes and before clicking on restore, please hold control or alt key
- There will be a popup to choose the OS
- Choose 2.0 and continue
September 28th, 2008 at 4:52 pm
THIS REALLY WORKS:
1. First you’ll want to make sure you’re running iTunes 7.5
* If you have a newer version, go ahead and uninstall that version of iTunes
* Download iTunes 7.5 (iTunes 8 works for me)
* Install iTunes 7.5
2. Download an older version of the iPhone OS to your desktop
* If you’re downgrading from iPhone 2.1 OS, you’ll probably want to go with iPhone 2.0.2 OS
* If you’re downgrading from iPhone OS 2.0.2/2.0.1/2.0.0, you’ll probably want to downgrade to iPhone OS 1.1.4
* Find previous iPhone OS versions here.
3. With the older version of iTunes installed, connect your iPhone or iPhone 3G to iTunes via the USB data cable
4. Reboot your iPhone into DFU restore mode
* Hold down the “Power” and “Home” buttons simultaneously until your iPhone turns off (ignore the “Slide to Power Off” prompt)
* When your iPhone turns off, release the “Power” button but keep holding that “Home” button
* Hold the “Home” button for a good 10 seconds
* iTunes will recognize your iPhone in restore mode and prompt you to restore the iPhone before using it
5. Force your iPhone or iPhone 3G to restore itself using the older iPhone OS that you downloaded previously
* Mac - hold down the “Option” key as you mouse-click on “Restore” button in iTunes
* PC - hold down the “Shift” key as you left-click on the “Restore” button in iTunes
6. Select the older iPhone OS file that you downloaded to your desktop
7. Enjoy your newly downgraded iPhone or iPhone 3G!
* Ignore any 1011, 1013, 1015 errors
* Errors like 1601, 1602, 1600 require that you put your iPhone into DFU restore mode again and force-restore again (start at Step 4)
September 28th, 2008 at 4:54 pm
Find previous iPhone OS versions:
http://www.felixbruns.de/iPod/firmware/
October 7th, 2008 at 4:40 pm
That didn’t work for me it would go through the restore in normal time but would never take the phone back out of restore mode at the end so i had to just click it normally which obviously updated it to 2.1.
Oh well i will have to find another way to unlock the phone because i got a turbo sim but it only works with 2.0.2 and lower. Anyone else know unlocking method for 3g? (So any USIM can be used)
CHEERS
Alex
October 11th, 2008 at 9:52 pm
to P.Mosh,
what do you mean with”ignore errors 1013…”?
The phone just stops, showing the usb cable and the instruction to connect to the pc. How do you get to use the phone again?
Every time I tried ends the same way.
Please, if you can help me I will be gratefull.
October 12th, 2008 at 2:01 am
Yes - I have the same issue.
What do you mean ignore error [1013] - how do you use the phone?
October 21st, 2008 at 11:36 pm
all u need to do is o everything on top but before you start you have to open task maneger and end process ituen helper it worked for me
November 10th, 2008 at 4:33 pm
Hi.
I’ve got an iphone 2G. It was one of the first available and I never did an update before the 2.1 update.
I’ve have tried the steps above and it just doesn’t work. Can someone help me? I get error (20) when I try to restore to 1.1.4 and error (1) trying to restore to 2.0.2.
Is there a way to just reset the Iphone completely?
greets
November 14th, 2008 at 4:13 pm
hello all, following what all of you have said, i found the best and quickest working way out of all the comments above.
i have the iphone 3g, was on 2.1 and itunes 8.0.1
simple go to task manager (windows of course) dont have a clue for MAC,
and close ituneshelper.exe
put your phone in recovery mode, hold shift and click restore in itunes, and select te version you have downloaded that you wish to put on your iphone and away you go, no messing about like trying to crash it etc…..
November 16th, 2008 at 5:48 am
Hi there!
I have tried to crash my iphone 3g 2.1 to get it back to 2.0, but when its finished downgrading it keeps going back to restore mode.
November 16th, 2008 at 6:06 am
How to get it back to normal mode? Programs like ZiPhone wont do the trick…. It does not find my iphone!