iPhone 3GS 3.0 jailbroken, want to restore.

[junkmeh]

I have a 3GS, jailbroken with my ECIDs on file via Cydia. I want to restore because for whatever reason, last night my phone decided to not want to open the camera app/photos app and it has been going on all without any solution but to do a restore.

As a result of Apple's verification process, what do I need to do inorder for me to rejailbreak to 3.0 (or well 3.0.1) too I guess? I don't want to go to 3.1 as I want to remain jailbroken and want to have the ability to unlock.

Do I need to simply change that hosts file in the etc folder so that the phone will verify my ECID from the Cydia server? I;m just afraid iTunes won't let me restore to anything but 3.1 and I don't want to update my baseband.

Thanks for any help!

[bruinsrme]

I was about to post the exact same question. I am totally confused on this.

[bytethese]

I have a 3GS, jailbroken with my ECIDs on file via Cydia. I want to restore because for whatever reason, last night my phone decided to not want to open the camera app/photos app and it has been going on all without any solution but to do a restore.

As a result of Apple's verification process, what do I need to do inorder for me to rejailbreak to 3.0 (or well 3.0.1) too I guess? I don't want to go to 3.1 as I want to remain jailbroken and want to have the ability to unlock.

Do I need to simply change that hosts file in the etc folder so that the phone will verify my ECID from the Cydia server? I;m just afraid iTunes won't let me restore to anything but 3.1 and I don't want to update my baseband.

Thanks for any help!
Saurik has some details on his site:
http://www.saurik.com/id/12

It seems to involve the editing of your hosts file, yes. :)

[bruinsrme]

here is another link that show the host file (http://www.quickpwn.com/2009/09/downgrade-iphone-3gs-3-1-to-iphone-3gs-3-0.html)

[ignus graius]

here is another link that show the host file (http://www.quickpwn.com/2009/09/downgrade-iphone-3gs-3-1-to-iphone-3gs-3-0.html)

From the link:
It only works for the few that were able to use Cydia’s “on file” system and “hash” their ECID

Unless you have your 3.0 hashes stored on Saurik's server, DO NOT ATTEMPT TO RESTORE to 3.0... it won't work, and you'll either have to upgrade to 3.1 or be without a phone until 3.1 is jailbroken.

[bruinsrme]

OP mentioned his # were on cydia.
They should be good to go.

[FastangV6]

OP mentioned his # were on cydia.
They should be good to go.

Doesn't it depend which ECID's are on file? Like if his 3.1 ECID is on file, but his 3.0 and 3.0.1 ECID's are not, then he is stuck with what he has or 3.1, right?

[STEVESKI07]

Doesn't it depend which ECID's are on file? Like if his 3.1 ECID is on file, but his 3.0 and 3.0.1 ECID's are not, then he is stuck with what he has or 3.1, right?

I believe the ECID is firmware specific. Therefore if you have the 3.0 ECID on file then that will only work with the 3.0 firmware and not the 3.0.1 or 3.1 firmware.

[The General]

Settings -> General -> Reset -> Reset all data and settings.

Don't even mess with restoring through iTunes, unless you're one of the 50,000 people that got their 3.0 ECID SHSHs on file with Cydia during the "window" (just before and after 3.1 was released) then you won't be able to do it. Adding stuff to your hosts file won't help, you'll only get yourself to 3.1.

[bruinsrme]

I believe the ECID is firmware specific. Therefore if you have the 3.0 ECID on file then that will only work with the 3.0 firmware and not the 3.0.1 or 3.1 firmware.

Form the quick read it looks like you downgrade to 3.0 anyway. I wish I had a back up 3Gs to play with this.

from the bigbosswebsite (http://thebigboss.org/2009/09/14/31-3gs-downgrade-for-the-chosen/)

[The General]

Form the quick read it looks like you downgrade to 3.0 anyway. I wish I had a back up 3Gs to play with this.

from the bigbosswebsite (http://thebigboss.org/2009/09/14/31-3gs-downgrade-for-the-chosen/)

This is for the chosen few. If the OP is not one of the 50,000 people who got their 3.0 ECID SHSH files on, then when he tries to restore, it will fail, and it will have to install 3.1.

DO NOT DO ANYTHING LIKE THAT. JUST RESET BY GOING TO SETTINGS>GENERAL>RESET

[bruinsrme]

This is for the chosen few. If the OP is not one of the 50,000 people who got their 3.0 ECID SHSH files on, then when he tries to restore, it will fail, and it will have to install 3.1.

DO NOT DO ANYTHING LIKE THAT. JUST RESET BY GOING TO SETTINGS>GENERAL>RESET

yes but the OP stated he was one of the lucky ones. I hope I am too