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Jailbreaking iPod touch 4


xtal256

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Ok, first things first. As far as i know, jailbreaking iPhones/iPods is legal, so there should be no issues posting here. But if i am wrong, i don't mind if this post is closed.

 

Now, as the title suggests, i am planning on jailbreaking my iPod Touch. It is 4th generation and iOS version 4.2.1, although when i got it a few months ago i think it was 4.1 (the 4.2.1 upgrade was available as soon as i connected it to iTunes, so i upgraded it).

 

I have read up on the jailbreaking process at websites like http://helpmejailbreak.com and wikipedia, and have downloaded some of the software required (ZiPhone and redsn0w_win_0.9.6b6).

But before i attempt to jailbreak, there are still a few critical things i need to know:

  1. Apparently the patch for 4.2.1 is tethered. Since i don't want this, i may have to downgrade to 4.1 in order to jailbreak. I may be able to restore to 4.1 since i think that's what my iPod came with, but i'm not sure. Is this possible to do so, or is there an untethered jailbreak for 4.2.1?
  2. Will i lose any app data, either if i restore to 4.1 or when i jailbreak? I don't want to lose saved progress in any of my games.
  3. The main reason for doing this is so that i can access the contents (i.e. music) of my iPod because it will appear as a drive in Windows. Is this true, and will i be able to access the whole drive (i.e. app data, executables, etc), or at least just the music folder?
  4. After i do it, will i have any problems later? For example, what would happen when new iOS updates are released - will i have to wait for a new patch for each new update? Or could the patch crash and lose data?
Edited by Haro
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I'm running a Jailbroken 4.1 iPhone 4, and I had to downgrade from 4.2.1. to get a jailbreak again (this was before the link down below was released), so I've been in your position:

 

1. Greenpois0n for 4.2.1. was just released a day or two ago, and is an untethered JB for 4.1-4.2.1., so that is by far your best option at this point. I haven't tested it on 4.2.1. yet but it worked great for jailbreaking my iphone at 4.1.

 

2. Well, first sync to iTunes to backup everything just in case. When you jailbreak you shouldn't lose anything. As long as you don't restore or downgrade to a previous patch, you should be totally fine.

 

3. Yep, you can access everything. Just install OpenSSH on your ipod (via Cydia), and WinSCP on your computer (if you're running windows - if you're running a Mac, I think Terminal works). After that's all setup, you can now remote access everything on iPod. Oh yeah, and when you first hook up your iPod to WinSCP via OpenSSH, it'll ask for a password. The default password is "Alpine"... yeah, you might want to change that so your iPod is way more secure.

 

EDIT: If you want to view all the program files and stuff that your iPod has installed, from the same iPod, iFile is a great program that you can install via Cydia. I'm pretty sure it's shareware.

 

4. When you're asked to update to a new version in iTunes, DO NOT accept if you want to keep your jailbreak. If you accept, the jailbreak will be gone, but you probably won't lose any data. And if you update and want to jailbreak again on the new version, you'll have to wait until a new jailbreak for that version is released (this could take a month or sometimes even more).

 

Hope that answered your questions... holy sh*t I just wrote a whole novel up there, hope it's not to confusing tounge2.gif

Edited by LCstuntman
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VercettiCrimeFamily

I have a iphone4 , people tell me not to jail break it because if it goes wrong it wont be covered under the insurance is this true?

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I have a iphone4 , people tell me not to jail break it because if it goes wrong it wont be covered under the insurance is this true?

Yeah, jailbreaking does void the warranty, but if something gets messed up just restoring through iTunes should fix it. Plus, if something else weird happens thats unrelated to the jailbreak, for example over heating, you can always restore and they shouldn't be able to tell if it was jailbroken, thus keeping the warranty intact.

 

Pretty much as long as you don't do something really stupid nothing should go wrong. Just be careful.

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First there is a jailbreak for 4.2.1 however iOS4.3 is due out soon so you might want to wait

 

As for shiek's question. While LCstuntman did pretty much answer the question there is something he left out. If you take your phone in for any reason while jailbroken then no Apple will not help. Now usually you can restore it like he said there are cases where the phone is bricked because of the jailbreak so you trying to do a restore won't help and Apple can possibly recover the phone however if during that they find out it's jailbroken then you're screwed.

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1. Greenpois0n for 4.2.1. was just released a day or two ago, and is an untethered JB for 4.1-4.2.1., so that is by far your best option at this point. I haven't tested it on 4.2.1. yet but it worked great for jailbreaking my iphone at 4.1.

Funny, i saw the news on http://helpmejailbreak.com yesterday when i was writing this post, but the link did not work. Today it does. Must be very new.

 

 

2. Well, first sync to iTunes to backup everything just in case. When you jailbreak you shouldn't lose anything. As long as you don't restore or downgrade to a previous patch, you should be totally fine.

Ok, cool. I was going to backup anyway, but i wasn't sure exactly what backup backs up (i know it should backup all app data, but you never know (i'm a hacker*, i'm very suspicious smile.gif)).

 

 

3. Yep, you can access everything. Just install OpenSSH on your ipod (via Cydia), and WinSCP on your computer (if you're running windows - if you're running a Mac, I think Terminal works). After that's all setup, you can now remote access everything on iPod. Oh yeah, and when you first hook up your iPod to WinSCP via OpenSSH, it'll ask for a password. The default password is "Alpine"... yeah, you might want to change that so your iPod is way more secure.

Ok, cannot access as a drive, but SSH is just as good (i already have WinSCP).

 

 

4. When you're asked to update to a new version in iTunes, DO NOT accept if you want to keep your jailbreak. If you accept, the jailbreak will be gone, but you probably won't lose any data. And if you update and want to jailbreak again on the new version, you'll have to wait until a new jailbreak for that version is released (this could take a month or sometimes even more).

Yeah, i suspected that.

 

 

Hope that answered your questions... holy sh*t I just wrote a whole novel up there, hope it's not to confusing  tounge2.gif

No, that was very helpful. I kinda already knew most of what you said, but the main reason i posted this is to get verification from other people so that i could be certain i was doing it right. The last thing i want is to think that i know what i am doing, but do something wrong and completely f**k up my iPod.

 

 

* hacker, not cracker.

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