iBooks has built-in jailbreak-protection

[MarkK]

When I read this today, at first I couldn't believe it, but when I checked it, I found the info to be true.

On jailbroken devices, iBooks will throw an error and tell you to reset your iPad if you try to open an eBook for reading.
The background is that iBooks will try to load an unsigned app. If this works, it know that your iOS-device is jailbroken.
Now... if Apple does this with other apps as well, i.e. Calendard, Safari, etc., we're really in for some problems.

Interestingly, I found that this only seems to occur if you try to open an eBook that was purchased from Apple's bookstore.
Third party eBooks downloaded to the iPad via iTunes will still open just fine.
As I have 90% eBooks from external sources (legally acquired, mostly ePub), I'm not really affected by this right now. I'll simply stop buying eBooks through Apple.

Could someone try to verify this?

I wonder why this happens. Any ideas somebody?

 

[jakerich]

Yep, it's there. You get a message that you need to restore. I don't buy books from iTunes, but the one that came with it, Winnie the Pooh, no longer opens. I'll live with it, but it shows that Apple can shut down a jb'd device any time they want to.

 

[Daineath]

its fixed with the latest JB's

 

[jakerich]

its fixed with the latest JB's

Really? I jb'd with the first Greenpois0n release, and saw no reason to redo with the later version. What changed to "fix" the issue?

 

[nickbt]

Here is the fix to install via Cydia:
Fix iBooks Error After iOS 4.2.1 GreenPois0n Jailbreak [How to] | Redmond Pie

 

[Demandarin]

Yep, it's there. You get a message that you need to restore. I don't buy books from iTunes, but the one that came with it, Winnie the Pooh, no longer opens. I'll live with it, but it shows that Apple can shut down a jb'd device any time they want to.

It still does this on latest jailbreak. Only with the winnie pooh book ive seen so far. I have like 10 books, free ones, from their bookstore. Those still open n wrk fine.

 

[Demandarin]

Here is the fix to install via Cydia:
Fix iBooks Error After iOS 4.2.1 GreenPois0n Jailbreak [How to] | Redmond Pie

I tried it. Installed this repo: repo.insanelyi.com then installed ibooks fix. Now winnie the pooh wrks again...yeahhhh!!...lmfao so the fix confirmed to wrk. Thnkx.

 

[Bob Maxey]

Yep, it's there. You get a message that you need to restore. I don't buy books from iTunes, but the one that came with it, Winnie the Pooh, no longer opens. I'll live with it, but it shows that Apple can shut down a jb'd device any time they want to.

True... but thank goodness we jave a JB Developer Community that likes a challenge and solves issues like this.

Bob Maxey

 

[jakerich]

Yep, it's there. You get a message that you need to restore. I don't buy books from iTunes, but the one that came with it, Winnie the Pooh, no longer opens. I'll live with it, but it shows that Apple can shut down a jb'd device any time they want to.

True... but thank goodness we jave a JB Developer Community that likes a challenge and solves issues like this.

Bob Maxey

Yep, and I installed the fix as well and got Pooh back myself. Happiness returns.

 

[KekszNET]

Thank god I dont have books like those, only from external source, epubs.
But just for testing, never read a page