Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Downgrading first generation iphone

I

iKrl

macrumors regular
Original poster
Jun 2, 2009
248
12
I was looking at the story of the iPhone OS and thought to myself that it would be cool to compare the current 3.1.3 on the 3GS with the first generation iPhone (bought it on March 2008 so firmware was like 1.1.3). What I wanted to do was to downgrade my iPhone 1st gen to 1.0 but already tried restoring it to that firmware with no luck. It is now on the 3.1.3 and I don't know how to downgrade it all the way to the first version of the iPhone OS.
Does anyone have any ideas?
 
You would have to first find the firmware file, then put your iPhone into DFU mode, then while holding down shift on Windows or option on Mac, click the restore button for your iPhone, and select the 1.0 firmware.
 
Intell said:
You would have to first find the firmware file, then put your iPhone into DFU mode, then while holding down shift on Windows or option on Mac, click the restore button for your iPhone, and select the 1.0 firmware.
Click to expand...

I tried that and when I click on the 1.0 firmware it says "extracting software" and suddenly it says it couldn't do it with (20) as the error.
Do you think it has to do with when I bought the iPhone? Like I said it was late march 2008 and the box had the iTunes icon on it already.
 
iKrl said:
I tried that and when I click on the 1.0 firmware it says "extracting software" and suddenly it says it couldn't do it with (20) as the error.
Do you think it has to do with when I bought the iPhone? Like I said it was late march 2008 and the box had the iTunes icon on it already.
Click to expand...

The issue is that the baseband was also flashed, and you can't install a firmware older than the corresponding baseband (easily/effectively).
 
This is just a guess but did you try an older version of iTunes? And are you sure that you're in DFU mode?

sysiphus said:
The issue is that the baseband was also flashed, and you can't install a firmware older than the corresponding baseband (easily/effectively).
Click to expand...

Can't you downgrade the iPhone Gen 1's baseband with BootNuter if you have the needed files by using PwnageTool?

Edit: I would now suggest try using PwnageTool to create a custom firmware with 2.x and flashing the baseband back to the 3.9 version. Then try downgrading back to 1.0.
 
Intell said:
This is just a guess but did you try an older version of iTunes? And are you sure that you're in DFU mode?



Can't you downgrade the iPhone Gen 1's baseband with BootNuter if you have the needed files by using PwnageTool?

Edit: I would now suggest try using PwnageTool to create a custom firmware with 2.x and flashing the baseband back to the 3.9 version. Then try downgrading back to 1.0.
Click to expand...

Just to clarify, do I need to hack the iPhone to a much older version, say 1.1.4 or something and download these things to downgrade to an older baseband which would then let me downgrade to version 1.0?

O and by the way I tried using iTunes version 7.3.2 (oldest I could get which would work with the iPhone) and nothing happened, well actually the same thing happened, it said it couldn't do it because of (-50) the first time, then it was because of (20).
 
Applejuiced said:
I doubt it will work.
The baseband and firmare won't match and will not let you restore to 3 year old firmware.
Click to expand...

can't you just downgrade the baseband as well? it is a first gen iphone so I don't see why it can't work with something it worked with a long time ago
 
iKrl said:
can't you just downgrade the baseband as well? it is a first gen iphone so I don't see why it can't work with something it worked with a long time ago
Click to expand...

Not sure if you can downgrade it and with what tool.
Bootneuter flashes it and unlocks it but doesnt downgrade it to the old 1.0+ days.
I dont know if its worth your time and trouble to get this done. You will have to jump thru many many hoops and still it prob wont work.
 
Hello Everyone,

I 'm using an original 8GB IPhone (1st generation) as an Ipod Touch. I figured why not try to update it to the new OS.
Now I'm stuck with the "Connect to Itunes" logo. It won't go to the HOME screen. I am able to make an emergency call. My PC won't detect the phone either.

I tried calling Apple Support, but they would charge me $29.99 just to talk to them.

How do I restore my old Iphone to the previous OS if I can't go to the HOME screen?

What is the latest OS that I would need to download to be compatible with my 1st generation phone? WIll I need to download an older version of Itunes as well?

What kind of 3rd party software is needed as well if I need it?

Thank you.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back