Other jailbreaking to remove supervision of iPhone

[snsmosko]

Hi everyone.

I have an iPhone that was supervised , and then the supervision was taken off the phone, but the problem is that even without the supervision I can't connect to iTunes on PC, it gives a message that the phone is supervised by another computer and can't connect to the computer.
I searched about how to fix that. but it seems the only fix for that is to erase the whole phone, and this I don't want.

so my question is, if I'll jailbreak the phone, wil I be able to fix it??

please help!

regards
S. M.

 

[jtara]

You can probably back up you data, wipe the phone, and then restore.

Jailbreaking is not a good idea, and I doubt that jail breaking just by itself is going to solve your problem.

As an app author, I always insure that apps I write will not run on jailbroken (iOS) or rooted (Android) devices, so, it’s possible you will find that some apps stop working if you jailbreak.

However, I‘d imagine I’m in a very small minority of app developers who bother with this.

it sounds like supervision hasn’t actually been taken off. Discuss this with whoever was supervising. Your iPhone will need to connect once to either their Apple Configurator 2 instance or their third-party EMM or MDM solution For the supervision to be removed. They may well have “removed” your device from supervision in some database, but removal at the device level is not magic. It needs to phone home one more time!

 

[jtara]

Well, this stinks.... but makes perfect sense...

Remove Supervision from a Configurator 2 Device

According to Apple's Configurator 2 documentation, you can remove the Supervised status of a device, but doing so erases all content and settings, including apps and media.

docs.vmware.com

Note: above is from VMWare, which is one of the providers of third-party MDM solutions.

So, backup/restore isn’t going to work.

Can you understand why?

otherwise, supervision is useless for keeping e.g. Corporate secrets secret.

now you would have an unsupervised device with all the missile secret launch codes and nobody would know what you are doing with them...

I hope your company/school did not ask you to put your personal device under supervision. I don’t feel that is ever proper.

if company/school issued, and they’ve some policy e.g. that you can keep the device as personal say after they‘ve issued you a newer device, can you understand why this is designed to yield only a wiped fresh OS with no previous data left?

I think the best you can do is to export any data you can using individual apps export functionality. But realize you may be limited (particularly with Apple-provided apps) depending on supervision policy.

as far as any jailbreak-related solution, that’s not something that can be discussed on MR per MR policy. You’ll have to go to some jailbreak community, and I don’t think we’re allowed to even suggest what site you might go to for that information.

might be useful to know who locked down the phone. Company, school, or parent?

 

[adeuxx]

You can probably back up you data, wipe the phone, and then restore.

Jailbreaking is not a good idea, and I doubt that jail breaking just by itself is going to solve your problem.

As an app author, I always insure that apps I write will not run on jailbroken (iOS) or rooted (Android) devices, so, it’s possible you will find that some apps stop working if you jailbreak.

However, I‘d imagine I’m in a very small minority of app developers who bother with this.

it sounds like supervision hasn’t actually been taken off. Discuss this with whoever was supervising. Your iPhone will need to connect once to either their Apple Configurator 2 instance or their third-party EMM or MDM solution For the supervision to be removed. They may well have “removed” your device from supervision in some database, but removal at the device level is not magic. It needs to phone home one more time!

Hopefully you’re aware that adding jailbreak detection is a massive waste of time given how easily it is bypassed? Kernel level bypasses are now possible.

 

[uecker87]

Hopefully you’re aware that adding jailbreak detection is a massive waste of time given how easily it is bypassed? Kernel level bypasses are now possible.

And it is pretty useless on Android too. There are ways to hide root on an app by app basis. Oh well.

 

[sarpler]

Yes, you can fix this with a jailbreak. Specifically, search for the program called "iSupervisor": it can enable/disable the same flags that Apple Configurator does and let you install/remove MDM profiles and all that.

Hopefully you’re aware that adding jailbreak detection is a massive waste of time given how easily it is bypassed? Kernel level bypasses are now possible.

The only jailbreak-detection that's bypassable is the simple kind where the app just does an integrity check to see if any tweaks were injected. (The "bypass" being just to tell your jailbreak to disable injection for that app).

Sadly for all of Apple's much lauded security, iOS doesn't have legit sandboxing and gives apps full read access to the entire filesystem so serious jailbreak detection is both trivial and bulletproof: any app can tell if a phone is (or ever was) jailbroken just by looking for any traces of jailbreak files and modified permissions. Currently there's no way to prevent this. Many apps detect jailbreak these days and just won't work and there's nothing you can do to get around it. It's especially bad with games and banking apps.