Unjailbreak - Removal of Limera1n or Greenpois0n

[funy]

Hi all,

Ive been using iphones for a while now, originally an iPhone 3g which i have been jailbreaking since the 2.1 days with quickpwn and laterly (after 3.0 with redsn0w.)

Now back in those days if i had any problems and needed to remove the jailbreak forwhatever reason i could just backup my phone in itunes, run a restore of original firmware file, then load my phone backup over the top.

Result i was back to non jailbroken iphone with all my data intact.

-

Fast forward a bit and I now have an Iphone 4 and the 4.0.1 jailbreak jailbreakme.com - It was announced from fairly early on that the jailbreak was a userland exploit, so just like the spirit jailbreak for 3.1.3 the jailbreak was userland and would become part of the backup, so a restore of firmware and backup would return the phone as jailbroken still.

However with this new 4.1 exploit of geohots which everyone is now using as far as im aware is a bootloader/iboot exploit which isnt userland, however the bit that allows untethered is userland.

So what im getting at is if you were to restore to stock firmware then restore most recent backup (eg taken whilst jailbroken) would it cause problems and return the phone to jailbroken again?

Maybe im being a little paranoid, but im keen not to lose my save data for games and config should i have to restore due to problems that might have been caused by the jailbreak.

Does anyone know about this? I honestly dont use jailbroken apps as much now as a lot of what i did need is now part of the main os, but there are a few things i would like to play with but have so far only jailbroken my iphone 4 to try a few things out then returned to a clean before jailbroken backup within 48 hours.

THanks

 

[iPhone-power]

To get rid a jailbreak, you must restore. To get rid of all signs of a jailbreak, you must choose set up as new.

And your game saves and settings will not be retained.

 

[funy]

so its as i thought then, might wait until after ive completed the main games im playing (PvZ and Angry Birds) once im complete I might take the permanent plunge.

Thanks

 

[outphase]

You can just restore from backup and you'll no longer be jailbroken. What the above poster means is that some settings files used by your cydia apps will be orphaned.

 

[jvice09]

You can just restore from backup and you'll no longer be jailbroken. What the above poster means is that some settings files used by your cydia apps will be orphaned.

false, only 'set up as new' will erase ALL traces of jailbreak. bye bye to high scores of games though

 

[iPhone-power]

You can just restore from backup and you'll no longer be jailbroken. What the above poster means is that some settings files used by your cydia apps will be orphaned.

If you don't choose set up as new, some jailbreak files will infiltrate your firmware and cause quirks (none drastic except the possibility of rapid battery drain)

 

[outphase]

false, only 'set up as new' will erase ALL traces of jailbreak. bye bye to high scores of games though

I didn't say that they would be erased. That's exactly what I meant by files being orphaned as in left behind in your backup files. Restoring from a backup will not re-jailbreak.

If you don't choose set up as new, some jailbreak files will infiltrate your firmware and cause quirks (none drastic except the possibility of rapid battery drain)

That's FUD. Your firmware is not messed with in the files that remain in the backup because that's not how the backup works.

 

[f4780y]

If you don't choose set up as new, some jailbreak files will infiltrate your firmware and cause quirks (none drastic except the possibility of rapid battery drain)

How the hell will orphaned files from a restored backup cause rapid battery drain? That is nothing short of impossible... Utter rubbish.

 

[TMar]

Fast forward a bit and I now have an Iphone 4 and the 4.0.1 jailbreak jailbreakme.com - It was announced from fairly early on that the jailbreak was a userland exploit, so just like the spirit jailbreak for 3.1.3 the jailbreak was userland and would become part of the backup, so a restore of firmware and backup would return the phone as jailbroken still.

However with this new 4.1 exploit of geohots which everyone is now using as far as im aware is a bootloader/iboot exploit which isnt userland, however the bit that allows untethered is userland.

So what im getting at is if you were to restore to stock firmware then restore most recent backup (eg taken whilst jailbroken) would it cause problems and return the phone to jailbroken again?

Maybe im being a little paranoid, but im keen not to lose my save data for games and config should i have to restore due to problems that might have been caused by the jailbreak.

Does anyone know about this? I honestly dont use jailbroken apps as much now as a lot of what i did need is now part of the main os, but there are a few things i would like to play with but have so far only jailbroken my iphone 4 to try a few things out then returned to a clean before jailbroken backup within 48 hours.

THanks

Userland JB are not persistent in backups. If you back up your phone while you are JB via spirit or start and you restore the phone from a back you will not be JB. Some aspects of a any JB can be saved via backups but are superficial and cause no real problems.

 

[iPhone-power]

That's FUD. Your firmware is not messed with in the files that remain in the backup because that's not how the backup works.

How the hell will orphaned files from a restored backup cause rapid battery drain? That is nothing short of impossible... Utter rubbish.

The same way that restoring to a backup when doing an upgrade and re-jailbreak can cause battery issues. Doesn't happen often, but I have seen it on a couple of units.

And it's not short of impossible any more than it can happen with upgrade/jailbreak. There are posts in every blog about it (including this one)

 

[nidserz]

I'm going to cry LOL. I restored from a backup and my angry brids scores didn't save. I have to restart and worse is that it didn't unjailbreak. I have cydia still.
Is there anyway to unjailbreak without losing all my settings and data?

 

[f4780y]

The same way that restoring to a backup when doing an upgrade and re-jailbreak can cause battery issues. Doesn't happen often, but I have seen it on a couple of units.

And it's not short of impossible any more than it can happen with upgrade/jailbreak. There are posts in every blog about it (including this one)

Rubbish. The ONLY way a file can drain the battery is if it is executing as a program. There is just NO WAY to get an orphaned file to execute on a restored phone. Talk sense man. Just think, if that was possible, you could restore a jailbreak with ease.
There is no denying restores can cause issues due to incompatible settings etc., but claiming "rapid battery drain" is just wrong.

 

[Carlanga]

I'm going to cry LOL. I restored from a backup and my angry brids scores didn't save. I have to restart and worse is that it didn't unjailbreak. I have cydia still.
Is there anyway to unjailbreak without losing all my settings and data?

yeah, usually one restores from backup, it seems you didn't do a backup of your phone after using angry birds at that time which made you lose your saves. Also sometime ago an Angry Birds update killed the scores and people had to beginning again from new.

 

[nidserz]

yeah, usually one restores from backup, it seems you didn't do a backup of your phone after using angry birds at that time which made you lose your saves. Also sometime ago an Angry Birds update killed the scores and people had to beginning again from new.

Ahhh, no I did a backup right before I restored. Now I am starting to restore from scratch, very OCD and want to have everything perfect. Started phone as new and hopefully no more jailbreak. Don't really need it... Still want to cry, did all the levels on the iPad then got iPHone, redid the levels, and no have to start over.

 

[BlahBlahBlah76]

I know this is an old tread, but just to make sure. I have a 3GS running iOS 4.1
It is jailbroken with greenpois0n. I want to remover the jailbreak, all I need to do is "restore as new" correct? i have not done anything with the bandbase and I have no need to a jailbroken iphone.

 

[eastercat]

Yes

I want to remover the jailbreak, all I need to do is "restore as new" correct?

 

[kosmiq]

I'm joining the thread as well...

I jailbroke my phone a few days ago and I'm happy so far. However I do have a few questions regarding this.

A lot happens on the phone after jailbreak and lets say a new version of iOS.

So what would happen if I
1. Simply install 4.3 over jailbroken 4.2.1?
2. If I first remove all apps installed through cydia and thus "restoring" to a newly jailbroken state, and then installed 4.3?
3. Will Cydia be removed if I perform the above?
4. If I create a new backup while jailbroken I understand, from the discussion above, that some files might follow but will I really notice it in any way?

Reason I am asking is that I would like the possibility to remove the jailbreak and still keep all SMS, settings and so on.

Another question while I'm at it. What if I would do the above and restore the iPhone and keep all settings etc but remove the jailbreak and then move on to an iPhone 5 and simply migrate all SMS, settings etc. Might I still get some of the jailbreak files to the new iPhone in that case?

Simply put, is there ANY way to restore to a non jailbroken state and still keep everything?

 

[CKtoph]

I'm in the same scenario. If the camera app continues to be slow like it is due to the jailbreak, I'm ready to restore to original.

I recently got rid of my AT&T iP4 and had problems getting GP off of it before selling. I want to be sure that I can get GP off without any issues. Is it as simple as a restore from DFU? From what I've gathered from googling, it seems like a simple DFU restore won't do the trick.