Trying to restore iphone to 4.0 - HotUKDeals
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Trying to restore iphone to 4.0

souljacker Avatar
6y, 5m agoPosted 6 years, 5 months ago
I've got a 3g iphone on 4.0 which is jailbroken, but because i'm having loads of problmes with it i'm trying to restore it to 4.0.

Everytime i go on itunes and try and restore it from the 4.0 firmware on my desktop i get this error

Is it becasue there is a new software vesion out or is there any way i can get it to restore to 4.0?
souljacker Avatar
6y, 5m agoPosted 6 years, 5 months ago

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you can't restore to 4.0 unless you have saved your shsh files
U need to restore 4.0.1
yep, either restore 4.01 or if you have saved files then you can restore 4.0
U need to restore 4.0.1

thought i might, don't really want to do that as i want to keep the option of jailbreaking open
did you save your files on cydia?
Cydia saved my shsh automatically, so u might be ok, just need to edit your host file and see.
Cydia saved my shsh automatically, so u might be ok, just need to edit your host file and see.

how do i do that? how do i know if the files are saved?

Bypassing the Overlord
To this end, I have constructed a server that duplicates the functionality exposed by Apple's signature server, except using "on file" results rather than live requests.

All we need, then, is to make iTunes use it. Luckily, most operating systems also have the ability to locally define bypasses on specific hostnames through a file called hosts. Using this, we can redirect requests to Apple's signature server to Cydia.

So, open the file C:\Windows\System32\drivers\etc\hosts (Windows) or /etc/hosts (Mac OS X) and add the following entry to the bottom of the file.
Now, when iTunes thinks it is talking to Apple, it is talking to Cydia instead. Doing this will allow iTunes to access signatures already stored by Cydia's "on file" feature.

This server will also act as a cache for any SHSH blobs it hasn't seen, acting as an intermediary to Apple's server. This effectively registers your device with the "on file" mechanism, which means you can now enjoy the protections of being able to downgrade your firmware in the future even if you aren't jailbroken

Edited By: wolf359 on Jul 27, 2010 20:18: adding detail
if your files are saved then the above will allow you to restore 4.0
thanks for that, only problem i have now is when i edit that file and try to save it windows says i don't have permission to do that?

edit: sorted that now just trying to restore

Edited By: souljacker on Jul 27, 2010 20:39: .
excellent appears to be working..can i restore to 3.1.3 that way too?
yep, as long as you have the files saved
Now I've restored to 4.0 I probably haven't but I don't really need to now, phone is running a lot faster now and apps aren't crashing, looks like it was the jailbreak causing the problems, might try and rejailbreak but de-select some options like multitasking

Thanks a lot for your help, appreciated :)
if its a 3g no need for shsh blobs ignore the above
run quickpwn to finalize the downgrade.
If you're not happy there is a custom firmware for the 3g. Google it, it worked well for me (_;)
I'm just going to leave it on 4.0 now, it's running fine again, not really bothered about jailbreaking it, the only thing i'll miss is sbs settings

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