Downgrade iOS 4.0 to 3.1.3 iPhone Firmware

how can you add the 74.208.10.249 gs.apple.com to the host file? Wont let me save a file to the system 32 folder, only lets me save to my documents. Also, the hosts file looks a bit ‘non techy’. Couldnt get past this step so gave up and trying my own way

I try this and I keep on getting during the iTunes verify part a 3194 error. Why? Does this require the SHSH file to be on Cydia's server to do this? What if you don't have this is there any way to downgrade then?

how do I get to the Cydia server? I tried downgrading it but unsuccessful… Please let me know what I am doing wrong… On a Mac, how do I get to the SHSH file for the Cydia server to add what you suggest?

Thanks

Hi,

I am having problem downgrade my itouch 3G OS 4.0 to 3.1.2 & .3 with repeatedly error 3194. Please help me. This is my wife itouch that's i just bought it for her as a gift. But i accidently upgrade to OS 4.0. Now, i would like to go back to 3.1.2 or 3.1.3. I am using windows 7 x32/64bit. Itune version is 9.0.2.61.
I edited the etc file as above mention and still no luck…….

Please help…

i accidently upgraded to 4.0 also, ok.. everything seems to work except the problem im having is i dont have the 3.1.3 firmware to downgrade to.. been trying to find it online but no luck after an hour till i rean into this page.. mabye im missing the point on step 2.. all i do is rename the file with the original name and put 74.208.10.249 gs.apple.com after it?

Before: ipod touch 64gb 3g jailbroken with spirit

llll

ok, so everything seems to be working except im having trouble with finding the firmware when i hold shift and click restore.. mabye its because i dont understand step 2 that well, can someone explain it better?for some reason on my destop i have firmware 3.1.2 but obviously it wont work cuz mine came with 3.1.3 installed.. i accidently upgraded my jailbroken 64gb i touch 3rg gen to that new 4.0 firmware and noticed my jailbreak was gone.. its not too much a problem but if i have to ill wait till new jailbreak comes out.. its not like my i pod is bricked so im happy.

You can use RecBoot to easily kick the device into recovery mode and out of.
Saves having to do it manually.

OS X and Windows: http://www.sebby.net/443-recboot-final-release/

if you don't have shsh grabbed on server then you're out of luck.

John,

To downgrade from iOS 4 firmware on the iPod Touch and iPhone 3G, you need the ECID SHSH certificate for firmware 3.1.3 and if you don't have shsh grabbed on server then you're out of luck.

You can use thefirmwareumbrella to get the ECID SHSH certificate.

on step 1 open file up in wordpad not notepad, also right click on the host file before opening and uncheck read only. then once file has been edited save it.

where abouts does this go “74.208.10.249 gs.apple.com”at end of what string

When I jailbroke my iPhone, I saved the SHSH file to my Windows desktop, but it's not working. What should that file be named, and where should it be located? I really need better step by step directions, because it's not working for me.

after editing, it does not allow me to save. What can I do?

Does this work for MC models? I have 8GB MC model but keep getting error that restore failed due to error 3194 (Apple or Saurik authentication failed??)

thank you so much for this tutorial! i was trying to jailbreak my friends iPod and restored it to v4.0 by accident >> to helpmeguy yes this does work i just did it on an 8gb MC model – if the apple authentication has failed make sure you have edited the host file >on mac>
open terminal
type “sudo nano /private/etc/hosts”
enter user password
go down to the bottom of the file and copy/paste or type in “74.208.10.249 gs.apple.com”
hold ctrl (not command) and press O
when you are back on the normal command prompt type in “dscacheutil -flushcache” to flush the DNS cache

if you use windows you will have to wait for somebody elses help

see my post to helpmeguy if you are using a mac

@akcaver You can follow the other method

http://www.gadgetsdna.com/downgrade-ios-4-0-to-…

I am still having some troubles with this so if someone can post a vid that would be very helpful

Ive got the same problem. Copied it at the end of the document it still wont allow me to save.

i think you have to run it as an administrator… it said to me “contact an administrator to obtain permission to save”

Thanks man! If anybody's getting errors it means that you either aren't in recovery mode or you don't have your shsh saved on Cydia. that means you're stuck on 4.0! Sorry!

type this in google (iPod1,2_3.1.3_7E18_Restore.ipsw, 242 MB) and scroll down to file mirrors most work but u have to wait 120 secs but its worth it

and edit the host file… ??? ok, whats this host file ? under /etc/ i have several files and how will find which is the host file u r talking about ? can you be more specific ?

When I put in 74.208.10.249 gs.apple.com at the end of the string in hosts, and then I save it, it says access denied…

Linux? Make sure to use Sudo in the command. If using Microsoft, make sure you are an admin (change file through admin account).

Look under /etc/. There should be a “unreadable” file titled hosts. Open the file using Textedit.

If you are using Windows (I am assuming you are) then look under: C:WINDOWSsystem32driversetc
There should be a file titled “hosts”. Open this file with notepad and paste:
74.208.10.249 gs.apple.com
at the bottom of the page (the format should be the same as the characters above).

If you are using Mac, look under /etc/ and use Textedit to open the hosts file. follow the same steps as mentioned above.

*Make sure you are running an admin account or you will not be granted access to save the changes you make*

See above response to PaulPope717.

i don’t see anything after etc/ like idk where to add the 74.208.10.249 gs.apple.com

i am the only account on this computer and it still keeps saying access denied

where do i “select” the 3.1.3 original firmware thingy?

it doesnt work, itunes saids not compatible, y?

i have a 3gs OLD BOOTROM that was never jailbroke on 3.1.3 how can i jailbreak my iphone on iOS 4

It looks like the answer is “wait for a different jailbreaking tool.” I am in the same boat with an iphone my son bought.

PLEASE HELP ME GUYS..I HAD SUCCESSFULLY DOWNGRADED MY IPHONE..BUT THE PROBLEM IS THAT I HAVE A BACKUP FROM OS 4..WHEN I GOT BACK TO 3.1.2 ,IT GAVE ME ERROR THAT YOU HAVE A BACKUP OF A NEWER FIRMWARE AND YOUR CURRENT FIRMWARE IS OLD ONE.AND NOW I DIDNT GET ANY BACKUP..SO..PLZZ PLZZ TELL ME HOW TO GET BACKUP OF OS4 ON 3.1.3/OR 3.1.2….

open notepad as administrator

and select all files

You can use redsn0w 9.5b to jailbreak your iphone with os 4.0

so you open the file in word-pad.notepad. but when you save it, how do you save it as? notepad or word-pad? and what if it asks you to save it in Documents instead?

I get an unknown error 3194 when trying to verify with apple during restore process. I have the hosts file edited, any ideas?

Thank you so much! It worked!

how do i find the c:windowssystem32driversetc ?

same probleme

run as administrator

Wow. iPhone newbs. You have to download the firmware file first. If you don't know what you're doing, why do you have an iPhone?

me too =/

me too =/

THX

Everything works except for step 5. I don't get any errors, but it doesn't get the authorization from apple and leaves a big fat error at the end. I tried both options, “ok” and “more”, but nothing works…

I followed all the steps EXACTLY, word for word.

I don't have my 3.1.3 software anymore…
anyone knows how/where to get it ?

same

Can Any1 help?? Just trying to jailbreak my ipod

<hi
You rock!! thnx alot for the info, i've tried to downgrade my iphone for a loong time and nothing was working till i came a cross your information. THNX alot mate!

Thank you, thank you thank you….it finally worked!!! I was in a reboot/restore hell after ios 4.0.2. Apple, what are you doing????? I was thinking about android the last few days…

Shift + Restore does not work. Anyone know why? All that happens is the “Install and Update” box appears. And clicking that promps iTunes to download and install 4.0.2

Dont freak out if you get an error message after you restore. Go to http://thefirmwareumbrella.blogspot.com/ and downloaded it for Windows or Mac (Whichever you have) Install it and let it load up and then it will find your Iphone and click on “KICK OUT OF RECOVERY MODE” then you are downgraded!

Dont freak out if you get an error message after you restore. Go to http://thefirmwareumbrella.blogspot.com/ and downloaded it for Windows or Mac (Whichever you have) Install it and let it load up and then it will find your Iphone and click on “KICK OUT OF RECOVERY MODE” then you are downgraded!

i get the same thing! did you ever figure it out? i figure i’m doing something worng, not following a step right?

on a mac its alt and click

google ipod touch firmware and click the first link. all firmware files for any idevice

Ok guys i found something AWESOME! Instead of downgrading to 3.1.3 downgrade to 3.0. Just shift click and select 3.0 ipsw, and it doesnt check with apple. Now all you have to do is help me out and find a way to update to 3.1.3 from there

Sorry, I’m new to this, so I would appreciate your patience with my novice questions. I have an unlocked iPhone 3G that is running iOS 4.0 and the baseband was also upgraded to 05.13.04.

I’d like to downgrade, but I wanted to verify that I’ll still be able to unlock it with the baseband being upgraded. My goal is to downgrade to iOS 3.1.2 or 3.1.3 and unlock it so I can use it on T-Mobile. Any guidance you can provide me would be greatly appreciated!

Its funny how Apple checks all the firmware versions except like 4.0, 3.0, 2.0, but all the ones like 3.0.2 or 3.1.3 or lower it checks. Im thinking maybe we should try downgrading it to 3.0 and then upgrading to 3.1.3 maybe that will work better since 3.1.3 is an updated version of the 3.0 firmware.

does anybody know how to get the shsh files from the 3.0 ios???

Hi Guys,
Some help would be greatly appreciated, my GF recently brought an iPhone 3G off ebay, which was jailbroken (originally locked to O2) so she could use her orange contract in it.
I knew very little of jailbreaking/unlocking etc at the time plugged it into her iTunes and told her to go ahead and update the software so it now has IOS4.1 on it and is no longer jailbroken.
I need a solution that will allow me to put her orange sim back in it. I have tried downloading a standard .ipsw of 4.1 and have ‘cooked’ it through snowbreeze, but when i then try to restore through itunes it says the firmware isn’t compatible.
As i say I have only really learnt the minimal amount i know since updating the OS, so don’t have any SHSH’s saved from before any updates, and I’m not even sure what OS it was running before it was updated.
ANy help would be greatly appreciated as its kid of my fault she no longer as a new phone and fixing it would definitely earn me some brownie points!!
Many Thanks

Hi,i got an iphone 3gs of ebay, it wasnt jailbroken but was unlocked….when i tried to use it on vodaphone i found it was still locked to o2!..I got a PAYG O2 sim, put £20 on and made a few calls and texts then went onto there website. There is a form on there that you can fill in (its very quick and easy) and it will charge you £15 to UNLOCK your iphone..this means she will be able to use her orange sim in it THEN get on an Iphone forum and ask about the jailbreak…i did this last week and jailbroke mine very easily (it was running os4) Hope this helps..Helen

how do u downgrade the ipod 2g to 3.1.3
?????

To downgrade a ipod touch 2g 3.1.3 you need to download the firmware of 3.1.2. So in Google type “3.1.3.ipsw file” Download the file and save it on your desktop. After, plug your ipod touch 2g into your computer and run Itunes. After, turn of your device and then once it is off hold the lock key and home key for 10 seconds and after this time release the lock key BUT HOLD THE HOME KEY until the ‘connect to itunes’ comes up. Then what you do is click on your ipod and hold ‘SHIFT’ and click on restore. From here locate the file downloaded and add on the end of the file ’74.208.10.249 gs.apple.com’ (this is so apple verifys your file’ Then follow the steps and it will be done. NOTE : TAKE A BACK UP BEFORE FOLLOWING THE STEPS AND NOTE IT WILL DELETE MUSIC AND PICS AND MAYBE APPS. If you want to jail break it, use jailbreakme.com (just type it in safari on your ipod 2g)

download firmware from another site downgrade via itunes click restore whilst holding shift(windows) and select downloaded firmware… google it. same problem with my gfs iphone