[unicorn025]

hi , i'm new to this forum and the iphone.
i brought a iphone from my nephew (2g) and just want to say thanks for this tut it was my first time doing the downgradeing and the tut was easy to follow. and i now have a jailbroken phone thanks and keep up the good work.

[Genghis Khan]

Originally Posted by hibernian56

Easy downgrade, with full service
Six days it took messing around to find this...

This is a simple version of several thousand million various attempts, cobbled together from some hundred or so posts, some bogus, some unreadable, in order to convince my iPhone that the sim card actually does work...

Being Irish, I would prefer to be out drinking than spending countless nights infront of my Mac.. Anyway here goes...

The downloads you will need are; (Download all of these to the desktop for your own sanity)
iTunes 7.5
Download iTunes 7.5.0.20 - FileHippo.com
Iphone 1.1.4 Firmware
iPod/iPhone firmware update 1.1.4 released - The Unofficial Apple Weblog (TUAW)
iBrickr
cre.ations.net - Creation: iBrickr: Easy iPhone ringtone / app management for Windows (This is windows ONLY)
Ziphone 3
ZiPhone's Blog
Kiphone
EraseBaseband

Ok so you've downloaded all of these, lets get started...

1. Upgrade your iPhone to Version 2 software through iTunes as normal, and wait for the Sim locked message. You need to do this to normalise your iPhone again incase any previous messing around did anything nasty.

2. Uninstall iTunes if it is a higher version than 7.5 and install iTunes 7.5 (You need to do this to avoid the annoying Error 1604). Some of you may have a problem on the mac when downgrading to iTunes 7.5 (Library error). You need to go to finder click on /Users/Username/Music/iTunes you should see the "iTunes Library" file. MOVE it somewhere safe. YOU DO NOT HAVE TO DELETE THIS FILE, if you do you will have to redo all your playlists etc, believe me I made this mistake (Thank God for Time Machine!!). iTunes 7.5 should launch away

3. Restore your iPhone to 1.1.4. Do this by docking your iPhone and hold down the Option key (Mac) or Shift key (PC) and click on restore. Point iTunes to the 1.1.4 firmware you downloaded earlier. Sit back and relax, you deserve a coffee.

4. Don't panic, you should get an "Error 10xx", usually 1015, this is ok. Take a sip of coffee, a deep breath and proceed.

5. Load up iBrickr, you will need a PC for this if you have a Mac or just fire up Parallels / VMWare. Luckily I had access to an old laptop. iBrickr should recognise your iPhone as being connected.

6. iBrickr (V0.91) has only two options, click the "Boot phone" button. The screen will turn red, this is normal, be patient it takes a couple of minutes to reboot.

7. You should now have have a 1.1.4 iPhone with a baseband from V2 (Who cares, its technical and we don't need to get into it here)

8. Run ZiPhone and use the "Do it all" option. Make another coffee, this takes 10 minutes or more.

9. You now have a jailbroken phone, with a "No Service" problem. Great.

10. Load up KiPhone. click on "iErase" (Mac) or "debug boot" and "Erase baseband" (PC). I HAD MORE SUCCESS WITH THE PC VERSION. The Mac version hung twice, it's your choice but for your own sanity maybe try the PC Version.

11. Enjoy, you should have full service back.

12. Dock with iTunes, it will ask you if you want to upgrade your iPhone, make sure to click the "Do not ask me again" button and click don't upgrade. Otherwise you will be back at square one.

13. Drink lots of beer, Apple you should be ashamed of yourselves, I wasted the majority of six days of my life to get this problem sorted. Pity-full.

I can get steps 1) and 2) done, but iTunes 7.5 won't recognise the iPhone at all. What should I do?

[piptaps]

im stuck on 7 guys its saying iphone software curentry not available make sure u have the latest vesion of itunes and try again plaese help

[tsurugiman]

I'm goona try this after work. I had a perfectly working 1.1.4 phone unlocked etc etc, and was checking out version 2.0 software on an unlock site, I downloaded the unofficial 2.0 and then the official thru itunes...doh. Phone been in recovery mode ever since. Although I can restore perfectly in the latest itunes 7.7 with version 2.0.

[piptaps]

thank you all so much for your help i got my phone back my altho i lost all my music its all good becoz i got installer now POSEIDON79 ((((mwaaa)))

[edwinator]

helpppp...my 1.0.2 accidentally upgraded to 2.0...tried everything to downgrde it..it's error (20)...please help me

[coryjohn7]

I have tried countless times to get the phone into DFU mode. I have followed your instructions and continually get unknown error 20 after I try to restore. Any other suggestions to make sure it enters DFU mode?

[Poseidon79]

Originally Posted by coryjohn7

I have tried countless times to get the phone into DFU mode. I have followed your instructions and continually get unknown error 20 after I try to restore. Any other suggestions to make sure it enters DFU mode?

Are you on Mac or PC? usually error 20 is due to the fact that you are not on the correct version of iTunes (7.5). Secondly, tell me what is displayed on the screen when you put your phone in DFU mode and hit restore in iTunes.

Originally Posted by piptaps

im stuck on 7 guys its saying iphone software curentry not available make sure u have the latest vesion of itunes and try again plaese help

This message displays if your phone is in recovery mode (Connect to iTunes logo) not DFU mode (Black screen).

[frankyfontaine]

Hi guys,

I tried this other guide just now and it worked, it's exactly the same except I used iLiberty to unlock it for step 13 and it worked perfect, try it out instead and let me know the problems you had, I had a couple but got around them, mainly I had to restore my iphone twice, that was the only hitch.

» 2.0 to 1.1.4 Downgrade - iPhone News & Review

[skizkit]

Poseidon79,

Can you shed some light on how one can revirginize their 2G iphone with the 2.0 firmware. I recently used the pwnage tool for 2.0 jailbreak and unlock and I am deciding to go back to factory settings... how can i do this?

[Poseidon79]

Originally Posted by frankyfontaine

Hi guys,

I tried this other guide just now and it worked, it's exactly the same except I used iLiberty to unlock it for step 13 and it worked perfect, try it out instead and let me know the problems you had, I had a couple but got around them, mainly I had to restore my iphone twice, that was the only hitch.

» 2.0 to 1.1.4 Downgrade - iPhone News & Review

You actually restore THREE times if you follow my guide correctly. Twice up front and once right before the final unlock/jailbreak.

Originally Posted by skizkit

Poseidon79,

Can you shed some light on how one can revirginize their 2G iphone with the 2.0 firmware. I recently used the pwnage tool for 2.0 jailbreak and unlock and I am deciding to go back to factory settings... how can i do this?

Use kiphone to iErase your 4.05 baseband and then do a normal itunes restore to 2.0. If you want to go back down to 1.1.4 you have to follow the entire guide.

[Jrazkall]

I entered successfully into DFU mode. Pwnage tool 1.0 confirmed the phone was in DFU not recovery. I have a Windows Laptop that I am using since it still has 7.5 on it (my mac had 7.7 and I tried to downgrade, but was still giving errors).

After in DFU the laptop give the "ding" that the phone is recognized and iTunes opens. I hold Shift and Click Restore - find the 1.1.4 firmware and click open. iTunes runs its processes and tries to being the restore process. Then it gives me the whole error spcheel with the error code... (-10)... I have tried this several times and cannot get past that point.

I am able to get out of DFU mode and have 2.0 run perfectly, I just really want to downgrade to 1.1.4


Please help!

[x2thaz64]

i am attempting this on a mac and i dont know if its because i dont know how to use terminal but i got this message after trying to download itunes 7.5 "itunes file cannot be read because it was created by a newer version of itunes.

whats this mean?

[thewenis]

Thanks! The first part works great for me--but after I run Kiphone, i do the shift+restore in itunes and I get the 1015 error again? why is this? any way I can go in and see what level of firmware/baseband is running?

What's my next step if I want to use the iphone w/o any phone contract? thanks!!

[Poseidon79]

That's ok.. just use iliberty to jumo out of receovery mode after error 1015.