Downgrade iPhone firmware 2.0 to 1.4
Ok, I am stupid enough to upgrade my iPhone firmware from 1.4 to 2.0 via iTunes. So it took me 2 full days to figure out how to bring my iPhone back to life. Here is how I did.
You absolutely need iTunes 7.5 to restore your firmware 1.4 . I don’t want to mess up with my iTunes on my Mac (of course, because of all my precious music) so I just D/L iTunes 7.5 Windows version and run on Parallel Desktop.
- On Windows, when you connect your iPhone to iTunes 7.5, it will tell you to restore it. (If you first connect your iPhone with firmware 2.0 to Windows, it might say that your phone is not compatible with this version of iTunes. Dont’ worry about this message, just close the popup)
- Press Shift + Restore (Option+Restore on Mac) and select 1.4 firmware.
- When finish, you should get 1015 error (if you don’t try again). Don’t worry about the error. Close your iTunes, the iPhone will stuck in recovery mode.
- Use iBrickr to kick it out of recovery state.
- I have to restore 2 times in order to kick it out of recovery mode.
- This is the most important!!! YOU HAVE TO DOWNGRADE BASE BAND FROM 04.05.04_G to 04.04.05_G
- I used ZiPhone patch newest version to downgrade baseband (I tried many methods on the internet, none of them work for me)
- Once you downgrade baseband you should get signal even though you did not do any jailbreak,activate or unlock.
- Now you can use any method you want to unlock the phone. I used ZiPhone on mac to do everything.
Now I have to keep my iTunes 7.5 on Windows parallel just incase I mess up anything again because now we know that 7.7 have some kind of hacking protection.
UPDATE : iClarified has a very nice tutorial plus video instraction to downgrade the baseband now.
UPDATE2: The Dev-Team released PawnageTool 2.1 which can easily Jailbreak/Activate/Unlock 2.0 firmware. The nice tutorial can be found at iClarified
July 14th, 2008 at 5:27 am
I’m trying to downgrade my iPhone 2G from 2.0 to 1.4 after stupidly upgrading and then realising I couldn’t unlock it afterwards.
However when I connect the iPhone.. using windows XP with iTunes 7.5 it displays a popup message telling me that I need to upgrade iTunes to 7.7 to use this iPhone.
What am I doing differently to you?
Cheers
Craig
July 14th, 2008 at 9:34 am
Don’t worry about iTunes showing the popup. Just close the popup and open the iTunes again. If iTunes can’t see your iPhone again, connect in recovery mode (hold down home+power until it off then release power button but still hold home button. Wait until iTunes detect iPhone). Hope this help.
July 14th, 2008 at 3:16 pm
Aaaaah, thank GOD!! I thought 7.7 had bricked my phone permanently.
I hope this works.
July 14th, 2008 at 4:35 pm
How do you select Press Shift + Restore and select 1.4 firmware.
I have tried this and get a error message from the apple update server can not be contacted?
July 14th, 2008 at 4:38 pm
It worked. I reimaged to 1.1.4 with iTunes 7.6, used the utility to delete the baseband, reimaged one more time. The second time I didn’t even get the 1015 error!
After that iLiberty+ worked perfectly.
July 14th, 2008 at 6:34 pm
THIS SAVED MY ASS!!
Seriously.. saved my ass.. so hard..
July 14th, 2008 at 6:34 pm
That, and READ THE README
its important, I was scared I bricked my iPhone for a second there
July 14th, 2008 at 10:23 pm
Perfect!! Tks a lot!! It works!!
July 14th, 2008 at 11:22 pm
Please help!!
I also updated my itunes and iphone. Now im stuck!! I have downloaded itunes 7.5 onto my mac and removed 7.7 but now it wont even recognize the iphone. I have tried it on a windows and I just get the message you all got saying I need to upgrade to 7.7 then it wont show the iphone. I have tried going in to recovery mode like you said with no success. My iphone is just constantly showing an image of the itunes logo with an arrow pointing upward with a USB below it. Any ideas anyone? Any help would be greatly appreciated!! Thank you, Grace
July 14th, 2008 at 11:31 pm
If you connect do the recovery mode right on iTunes 7.5, the iTunes should be able to see the iPhone.
OK, try this. Connect your iPhone to iTunes 7.5 with iTunes logo and cable plugging in on it. Then hold down home+power together until the screen goes off then release power but still holding home button. After 5 second, iTunes should say that your iPhone is detected and need to restore.
July 14th, 2008 at 11:35 pm
Thanks….
I have managed to get it into recovery mode and it has found it on my mac itunes. However, I now have the error ‘Software for this iphone is not currently available. Make sure you have the latest version of itunes and try again’
Any ideas again?!!
July 14th, 2008 at 11:41 pm
If you connect to iTunes on your mac you have to use Option + Restore instead of Shift+ Restore when you want to select firmware.
July 14th, 2008 at 11:44 pm
God I am so bad on computers can u tell?!! lol. Do u mean the options when u clikc view > view options? If so, it is like blacked out so I cant click it.
July 14th, 2008 at 11:57 pm
In mean on step 2, when iTunes see you iPhone and asking to restore. You have to use combination key (Option+Restore or Shift+Restore) to choose your desired firmware otherwise iTunes will use firmware that store on your system.
If you can’t click restore, I guess you have to re-enter recovery mode again.
July 15th, 2008 at 12:01 am
OK, im with you….thanks for your patience!! In my files, I can only find ipod 1.4 restore. Is that right? Thank you so much for helping me!!
July 15th, 2008 at 12:25 am
No worries mate, I’ve been there for 2 full days without phone. If you download 1.4 firmware from my link above, you should see the file name “iPhone1,1_1.1.4_4A102_Restore.ipsw”. You should select this file to restore it.
You should try this link
http://www.iclarified.com/entry/index.php?enid=1504
,it has a very good instruction with heap of pictures.
July 15th, 2008 at 12:42 am
I feel like such a pain!! lol. I have downloaded that, and looked on that website u advised. However, although the zip file is called Phone1,1_1.1.4_4A102_Restore.ipsw, there are no actual programs inside the folder named that. Also, none of them have that logo as seen on iclarified which shows a restore file. If that makes sense? so yet again, I am stuck! Please help….again! lol x
July 15th, 2008 at 12:45 am
Ey mate, I think I know your problem now. You cannot use Safari to download that firmware because Safari will extract it to the folder. Try using Firefox to download it. It should have exact name and extension shown above.
July 15th, 2008 at 1:05 am
The iphone could not be restored. An unknown error occured (20)
July 15th, 2008 at 1:22 am
were working! just udating it. fingers crossed!
July 15th, 2008 at 1:56 am
1 more question!! will iliberty automatically downgrade my base band?
July 15th, 2008 at 4:45 am
Hi,
I have done everything as said above and the phone is working with my sim. However, I cant get any signal and I know it works as it is the same sim I had in there before I updated to 2.0. Any ideas?
Many thanks
July 15th, 2008 at 9:43 am
Article was great. Although I had difficulty resetting the baseband at first, I was finally able to get ZiPhone to stop giving me runtime errors during the process (I used a different pc, go figure). Also, I had to use the 1.1.3 firmware since the 1.1.4 wouldn’t load - I kept getting the unknow error (1) in iTunes. After I loaded 1.1.3 I reconnected the iPhone to the pc where the profile for the device was initially saved. After restoring the profile iTunes asked if I wanted to upgrade to 1.1.4. I did that, but the phone displayed invalid SIM connect to iTunes, blah, blah, yada again. I figured that all I needed to do was re-jailbreak the phone again (I used iLiberty to do this). After breaking out of jail once again, I was able to sync the phone to the user’s contacts and calendar using iTunes, no problem. I told the user (which is the owner of my company) that we will need to wait until the dev team releases a stable jailbroken copy of the firmware before trying to load the new version again. He’s pretty anxious to have the Exchange features operational.
July 15th, 2008 at 9:49 am
Grace, you’re so close now. If you don’t have signal, it means that your baseband is 04.05.04_G. You need to download Ziphone patch from link in my post to downgrade baseband. Once you run the program, you’ll get the signal back.
July 15th, 2008 at 2:51 pm
I have been searching, and searching, and searching for a solution. And until now, I was going to give up. downgraded baseband was awesome! And if you follow the steps… it will work.
Thanks!!
July 15th, 2008 at 7:21 pm
I thought that was the problem but I keep getting ‘permission denied’ on kiphone. Do you know how I stop this from happening? x
July 15th, 2008 at 7:22 pm
This is the exact message I get:
ZiPhone v2.3 by Zibri. http://www.ziphone.org
Source code available at: http://www.iphone-elite.org
Loading zibri.dat.
ppc
Searching for iPhone…
USBMuxListenerCreate: Permission denied
July 15th, 2008 at 7:30 pm
Grace you have to download ZiPhone patch from here
http://iphone-freak.com/en/page1/page1.html
It’s different from normal ZiPhone from Zibri
July 15th, 2008 at 7:33 pm
thats what im using I think. The top of the screen of the program says
‘ziphone patched by kimrek (visit us at http://www.iphone-forums.de)’
That the right/wrong one? x
July 15th, 2008 at 7:51 pm
just tried downloading it again from your link and still getting permission denied.
July 15th, 2008 at 8:29 pm
I have done it!!!!! Thank you so much!!! xxxx
July 15th, 2008 at 8:32 pm
It’s not the same Grace. The link to download ZiPhone Patch is a rapidshare. If you get ‘permission denied’. It means that you have problem with rapidshare. If you still have problem with downloading, I can put it somewhere else for you.
July 15th, 2008 at 8:43 pm
I have done it. Managed to get it to work on my dads computer. All I want to know now is, Am I ok to download itunes 7.7 again but not update the iphone to 2.0 or do I need to stick to 7.5?
July 15th, 2008 at 8:52 pm
Yeah, you can go back to 7.7 but DON’T UPDATE TO 2.0 YET.
July 16th, 2008 at 2:28 am
So, will someone be posting here an announcement concerning the successful 2.0 jailbreak?
July 16th, 2008 at 9:35 am
OMG! THANK YOU.
I CANT BELIEVE IT. IM SORTED.
July 16th, 2008 at 10:14 am
I have a Macbook..and i downgraded my itunes to 7.5 but no matter what i do, i still get error 20 wen i try to restore it!
July 16th, 2008 at 12:30 pm
Don’t knowhow to use the basebanddowngrader. Do I put it in recovery mode and run it?
July 16th, 2008 at 12:53 pm
i have an error (20), how do i get past that? because i have 2.0 installed
July 16th, 2008 at 1:20 pm
n/m i found my problem. i had the 1.4 software in a folder, and it wouldn’t do it for me, but once i put the 1.4 software on the desktop, it worked perfectly fine, but thanks, i got through with how u did it perfectly fine
July 17th, 2008 at 4:14 am
I need help with liberty +
July 17th, 2008 at 4:14 am
I have itunes 2.0
July 17th, 2008 at 7:04 am
hi, can anyone help me?
ive followed all the steps but when i try
downgrading the baseband and debugging the phone
i get this-
ZiPhone v2.0 by Zibri. http://zibree.blogspot.com
Source code available at: http://www.iphone-elite.org
Loading zibri.dat.
Searching for iPhone…
tp://zibree.blogspot.com
Source code available at: http://www.iphone-elite.org
Loading zibri.dat.
Entering recovery mode.
tp://zibree.blogspot.com
Source code available at: http://www.iphone-elite.org
Loading zibri.dat.
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application’s support team for more information.
July 17th, 2008 at 10:48 am
Brian,
You must use ZiPhone Patch download from here http://iphone-freak.com/en/page1/page1.html
It’s different from normal ZiPhone.
July 17th, 2008 at 4:34 pm
Hi I’m tryint to downgrade to v 1.1.4
and so far having no luck.
Everytime I try to restore it from iTunes 7.5 I’m getting this error
“The iphone could not be restored. An unknown error occured (20)”
I searched several websites but none of them have answer how to resolve this problem.
I’m on Win Xp trying iTunes 7.5 method to downgrade.
It’s simple doesn’t work.
I don’t know what to do at this point.
Cheers, DS
July 18th, 2008 at 5:28 am
got iTunes 7.5 but when I try to download the 1.4 firmware and open the folder it should be in it just shows a bunch of dmg files and not the ispw file that looks like a Lego with the iTunes symbol. Somebody help so I can get my old iPhone back!!
July 18th, 2008 at 9:04 am
Don’t use Safari to download firmware because Safari always unzip ispw file.
Use Firefox instead.
July 18th, 2008 at 10:33 am
[...] Good Instructions similar to [...]
July 20th, 2008 at 10:38 am
listen everybody, after doing all my research, I finally did it.
Unlocked my 2g iphone, and after 5 hours of debugging finally got utube to work. So now I am finished.
Iphone works perfect everything works
I used iliberty +.
and a few other free dowload patches
anyone need help no prob.
July 20th, 2008 at 2:54 pm
what patches did you use?? i got as far as the unlocking with iliberty but when i watch the boot loader and stuff it says the unlocking failed. what can i do to unlock it… help please i have also tried with ziphone
thanks,Zac
July 20th, 2008 at 3:03 pm
You guys don’t need to downgrade baseband anymore. The Dev-Team just released PwnageTool 2.0 at http://blog.iphone-dev.org/
Now we just upgrade to 2.0 and unlock it ^_^
I found the good instruction here
http://www.iphoneatlas.com/2008/07/19/jailbreak-for-iphone-3g-released-how-to-use/
July 27th, 2008 at 1:30 am
[...] Alias420 wrote an interesting post today onHere’s a quick excerptClose your iTunes, the iPhone will stuck in recovery mode. Use iBrickr to kick it out of recovery state. I have to restore 2 times in order to kick it out of recovery mode. This is the most important!!! YOU HAVE TO DOWNGRADE BASE BAND … [...]
July 28th, 2008 at 6:19 am
bro, i did everything and reached the part where iTunes gave an error and said the phone can not be restored. Now im trying to kick it out of recovery using ibrickr but its not detecting the iPhone. I tried so many times. please help!
July 28th, 2008 at 11:18 am
What is the error number? (it should be in 1015 not 16xx)
and what is the color of your iPhone screen when you are using ibrickr? (it should be green not red)
July 29th, 2008 at 3:56 am
ive just got my iphone in the mail supposely jailbroken and working but i couldnt turn it on. the screen showed apple logo followed by itunes. i contact he past owner who said he dowgraded form 2.0 to 1.1.4 using ijailbreak. there was no remedy, i had to restore it to 1.1.4 and tehn used ziphone. the error in itunes was 1015 even when the original band was 04.04.05. any ideas why? what that error means? would this carry more problems int he future?
July 29th, 2008 at 8:27 am
it works but you really have to make sure i tunes is not running… i used the (one click) unlocker and it took two boots in MS dos to unlock it after recovery mode. if anyone wants to unlock any 1.2-1.4 I have the software to do it
July 29th, 2008 at 11:05 am
Thanks god, It’s work fine. Just need some patient.
July 29th, 2008 at 9:07 pm
i dont know if i am doing this right but i keep gettin an error message 20 i hold both button down and once the screen goes blank i let it go and keep holding the home button but itunes does not reconize my phone. i need help please
July 31st, 2008 at 11:37 am
Smokin, What is your iTunes version? Error 20 usually come from iTunes 7.7. Please downgrade to iTunes 7.5
August 12th, 2008 at 9:16 am
” The iPhone “iPhone” could not be restored. An unknown error occurred (20). ” wiht iTunes 7.5!!
What does this (20) error means exactly? Somebody know the meaning of this error message?
August 13th, 2008 at 12:13 pm
pls help me i came across with a problem. i came until ibrckr then i opened it it says boot phone i clicked it my iphone turned green and it says if red thats ok but if its green u need to restore it from itunes. here is the problem when i click the itunes restore it.it says software for this iphone is not currently available.make sure the u have the latest version of itunes and try again.what sould i do pls helpppppppppppppp
August 13th, 2008 at 12:33 pm
You have to restore twice in order to kick it out of recovering mode with iBrickr.
August 17th, 2008 at 1:33 am
I have some really sad problem with my iPhone!! It gets stuck evrytime it uses the accelerometer!!! Or the iPod!!! Or the internet!! And it just gets stuck!! I was on 2.0 when I bought it!! And I downgraded to 1.1.4 to solve this problem.. But no result!! I on deep shit!!! Plz some1 help!! I want a solution pleeeezzzz help me guys!!!
August 20th, 2008 at 12:10 pm
i downloaded and followed every step but i get no signal please help
email me jperez0823@gmail.com
August 20th, 2008 at 12:12 pm
darwing can you email me the software or gimme a link to it?
jperez0823@gmail.com
August 22nd, 2008 at 8:11 am
you get to be called GOD!!!!! thank you so much
September 6th, 2008 at 2:27 am
Right I Done All Of It But When Sim Card In I Can’t Get A Signal N It Doesn’t Show Sims Installed What Now?
September 12th, 2008 at 5:36 pm
[...] exact instructions go to these links [...]
September 16th, 2008 at 5:10 am
you rock man!!! i spent fuckin’ 2 days over it. did lottssaa things. i juss cudnt downgrade ma baseband from v. 04.05.04_G. !!! but after readin so many positive responses in ur blog gave it another shot. and yeahh the ziphone link u provided workd for me..
thanx man!
September 16th, 2008 at 5:11 am
do you know how to unlock iphone 3G??? pls lemme knw bout it!
September 21st, 2008 at 5:58 pm
Dear All i have upgrad my iphone via itune 8.0
so it has again locked.i was not know that is a big mistake.
so now if any one know to solve this problem .pleas guide us to all
how can i downgrad it again
September 22nd, 2008 at 6:56 pm
OH MY GOD…….. U SAVED another ass…… Upgraded my 1.1.4 to 2.0.2 last night and was stupid enough. http://iphone-freak.com/en/page1/page1.html really works and downgraded my baseband to 04.03.13_G. just did it so will post if its giving me any problem. thanks man. Many thanks to Zibri too. Ciao
September 23rd, 2008 at 9:01 am
hi…i tried it from restore and it entered recovery but after it extracted the 1.4 firmware it gave me an error 20 not 1015! then i’m stuck from there? and what should ibrkr do? it doesn’t detect the iphone after itunes gave that error 20…?? huhuhu….
September 26th, 2008 at 6:44 am
bhenn let me know if sombody help with the error 20 I have the same and nobody cares !!!!
September 27th, 2008 at 7:00 am
You just saved my ass and gave a solution to a problem I had for 2 days now… I tried to update unsuccessfully from 1.1.4 to 2.1 and when I tried to downgrade back to 1.1.4 I couldn’t get a signal whatever I tried. The solution provided by you worked from the 1st time!!!!!! Many Thanks
September 30th, 2008 at 2:15 pm
Hi i upgraded my iPhone to 2.0.0 and unlock it with PWN it was working, but i tried to downgrade it, iTunes (7.5) give me an Error 20, and it cannot be downgraded, i used the ZiPhone to tried to downgrade the baseband and then restore it with the 1.1.4 restore software but i have this message Searching for iPhone…
USBMuxListenerCreate: Permission denied, and my iPhone no has a picture of a guy with his hands up sayiing something like this, npebeA!!, what can i do, i hope you can help me out with this!!
October 28th, 2008 at 2:46 pm
Dear All i have upgraded my iphone via itune 8.0
so it has again locked.i was not know that is a big mistake.
so now if any one know to solve this problem .pleas guide us to all
how can i downgrade it again
November 2nd, 2008 at 9:56 am
Hey guys,
I upgraded to 2.0 two days ago and ever since ive been trying to get my phone fixed back.
I have got up to the stage of restoring it to 1.1.4 but now im sstuck lol.
I have downloaded ziphone patched by kiremk.
Im using iTunes 7.5
My iPhone is in DFU mode i think but whenever i open up ziphone pathced and check “Downgrade baseband” and “Debug boot” the program automatically closes and nothing happens.
Can someone shed some light, i just bought my iphone from someone on ebay and it was unlocked (initally version 1.0.2)
Any help please!
Im so scared of my iphone being useless to me :O
Thanks
November 2nd, 2008 at 10:04 am
I was on 1.0.2 and clicked update on itunes to get to 2.0 i think.
nmy phone was unlocked and worked fine beforehand.
I have now got my phone to version 1.1.4 but apparently ive to downgrade baseband. I have d/L ziphone patched but whenever i select debug and downgrade baseband and then press start it just exits ziphone patched and nothin happens!
can someone help me? im really stuck and scared ill lose my iphone
thanks guys
November 2nd, 2008 at 3:48 pm
Gerard,
I recommend you to upgrade to the latest version 2.1 (at the moment) and use the latest version of QuickPwn [http://www.quickpwn.com/] to unlock it.
January 1st, 2009 at 12:32 am
FOR EVERY WHO HAS PROBLEMS WITH THE ERROR MESSAGE 20!!!
i was stuck on this for a whole day and was finally able to bypass it and unlocked, jailbreaked my iphone. here’s what to do. GO TO THIS WEBSITE AND HE’LL EXPLAIN EVERYTHING TO YOU!!! JUST MAKE SURE YOUR IPHONE DOESN’T SHOW THE USB AND ITUNES LOGO, WHEN YOU HOLD DOWN THE POWER AND HOME BUTTON!! EMAIL ME IF YOU’RE STILL HAVING TROUBLE. tousaephanh916@gmail.com
(http://www.anewmorning.com/2008/07/20/how-to-downgrade-your-iphone-20-to-114/)