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How would I know whether my iPhone is jailbroken?

If it is jailbroken, would you recommend that I update to a newer version?

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marked as duplicate by Andrew Larsson, patrix May 10 at 4:09

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Please ask one question. Also updating depends on a personal preference so there isn't a single answer to that. – FLY Jul 16 '13 at 9:52
    
If you can run unsigned code as root, then you're Jailbroken. – Andrew Larsson Jul 16 '13 at 16:28
    
@Harish Surely you would know whether you have jailbroken your own iPhone in the first place ? – Simon Oct 23 '13 at 19:08

I think the most simple test is to see if the cydia app is installed.

But that app can sometimes be hidden.

So you could scroll all the way to the left to spotlight search, type in "cydia" if the app comes up, then its jailbroken.

But It could be that the spotlight feature is disabled. In this case your device is jailbroken as well.

Technically I think it would be possible to hide the cydia app even from the spotlight search. But I don't see in any point in doing this. So I think checking for the cydia app is pretty watertight.

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1  
This is an indeterminate way to tell if your iOS device has been Jailbroken. – Andrew Larsson Jul 16 '13 at 16:27
2  
@AndrewLarsson then do you have a better way? I don't think this answer deserved a downvote... – MattDMo Jul 16 '13 at 19:01
    
You can install Cydia without being Jailbroken (albeit, it won't function), and Jailbreaking does not require you to install Cydia. If you can run unsigned code as root, then you're Jailbroken. That is one of the few determinate solutions. – Andrew Larsson Jul 16 '13 at 22:46
    
please write an answer if you have a better way – FLY Jul 17 '13 at 6:47

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