iPad 1, stock iOS 4.2.1, no SHSH blobs. Need advice on jailbreak.

Discussion in 'iPad Hacking' started by IvanLezhnjovIV, Aug 23, 2011.

  1. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Hi guys,

    so I've received my iPad 1 3G + WiFi last Friday and messed around a bit trying to jailbreak it but I failed to. I haven't kept up the pace with jailbreak related developments since the last jailbreak I made for my iPhone 2G with iOS 3.1.2 (7D11) a while ago so I wasn't aware of SHSH blobs deal at all and so I had to spend some time reading up on the subject.

    My iPad 1 3G + WiFi runs stock iOS 4.2.1 that I'd love to jailbreak untethered. However, according to numerous pages that describe the process on the Internet, one would need IPSW file for iOS 4.2b3 AND SHSH blobs for that firmware. And I don't have no SHSH blobs at all.

    I ran TinyUmbrella yesterday evening and it failed to save any SHSH blobs if I used Cydia as a fake gs.apple.com server. When using Apple native servers TU saved SHSH blobs for iOS version 4.3.5, and two more for iOS 5 betas.

    So, to me it looks like I've no other choice but to upgrade up to stock 4.3.5 version of iOS and then do a tethered jailbreak with redsn0w (I don't have Mac OS X around). Then wait if untethered jailbreak will be made possible for iOS 5 some time in the future.

    I have a few questions, though.

    1. Why does TinyUmbrella fail to save any SHSH blobs with Cydia servers? Is this expected and normal?

    2. If I do tethered jailbreak for 4.3.5 and my iPad reboots/halts while I'm on the road with no computer at hand will I be able to use iPad? It's just not clear to me what happens if you try to boot a tethered jailbroken iPad as usually without redsn0w. Will it bail out with some error or just boot stock version of iOS 4.3.5? If it boots a stock firmware and I do anything on it, like install new software via AppStore, change settings for iOS in General, etc. or change settings for some applications, and then boot tethered jailbroken iPad with redsn0w will all of those changes be reflected in jailbroken iOS?

    3. If I do tethered jailbreak for 4.3.5, then Apple releases iOS 5, Dev-Team hopefully jailbreaks it untethered, and I do then upgrade to this yet non-existant untethered jailbreak for iOS 5 will I be able to keep all the accumulated changes and settings made in 4.3.5? Will I have to make a backup and restore from it, or, perhaps, iOS upgrade will not touch anything of the sorts (like apps, settings, iPod library, etc.)
  2. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Oh, totally forgot to expand on what happened when I tried to use redsn0w and greenp0ison to jailbreak stock 4.2.1.

    redsn0w happily reported that the iPad was successfully jailbroken but it always booted up with the stock 4.2.1 intact. I tried both redsn0w assisted tethered boot and normal boot.

    greenp0ison, on the contrary, said that jailbreak failed and that was end of it.

    I then learned that redsn0w needs 4.2b3 with corresponding SHSH blobs for this very device and perhaps that is the reason why it failed to do a jailbreak (?)

    I'd really appreciate if someone could comment on this. Thank you.
  3. Whatthe
    Offline

    Whatthe iPF Novice

    Joined:
    Aug 18, 2011
    Messages:
    23
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    According to google, 4.2.1 should be easily jailbreakable by greenpoison without all that extra stuff. I even remember being untethered on 4.2.1. Make sure you are getting the latest greenpoison version from greenpois0n.com
  4. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Well, it fails to and doesn't explain why.
  5. Whatthe
    Offline

    Whatthe iPF Novice

    Joined:
    Aug 18, 2011
    Messages:
    23
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    It might have something to do with the baseband. F4780y will be by shortly...
  6. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    You be the judge, I can't really say why it failed. I do count on your support guys because I've tried just about anything I know of. And I'm really glad to hear that greenp0ison can do untethered jb for 4.2.1 because I really would love to have untethered jailbroken iPad :) You never know when a creepy bug pops up and freezes the device.
  7. Whatthe
    Offline

    Whatthe iPF Novice

    Joined:
    Aug 18, 2011
    Messages:
    23
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    I wish it had a log or something so you know what exactly failed.
    So you are using rc5? Or rc6.1?
  8. Mickey330
    Offline

    Mickey330 Administrator Staff Member

    Joined:
    Aug 30, 2010
    Messages:
    11,513
    Thanks Received:
    1,759
    Trophy Points:
    113
    Location:
    Western NY state (USA)
    Ratings:
    +1,898 / 0
    If I may, I would like to suggest something as you try to jailbreak that iOS 4.2.1 iPad (or maybe even before you go any further):

    Get a copy of the latest iFaith software (v1.3.2) by a gentleman named iH8sn0w. This will enable you to save the SHSH blobs for the iOS you are currently running on the iPad - 4.2.1.

    That way, if you mess up trying to jailbreak it, at least you'll have a chance on restoring back to that firmware version instead of having to go to iOS 4.3.5. The iH8sn0w website is down for maintenance right now, but he still has links up to go get iFaith. It's here: http://ih8sn0w.com/

    This is because, to answer your first, original, question - you can only save blobs for iOS versions that Apple is still signing. Currently, that is iOS 4.3.5. Once Apple stops signing a firmware, you cannot get it. So, that's why Cydia couldn't get SHSH blobs other than iOS 4.3.5 and some iOS 5 betas.

    And yes, you'll need to be near your computer should you need to reboot the iPad [on a tethered jailbreak]. It won't start up without and won't run "stock." However, people go weeks without having to reboot (especially if all they do is use it and don't go adding extra tweaks while away from their PC). So, it won't be the end of the world to be tethered, just a bit annoying...

    Finally, I join Whatthe in asking what version of greenp0ison you were using. Because I also jailbroke the iPad1 iOS 4.2.1 using RC6.1 with no problems. I still have that, now that I think of it - sentiment (it was my first jailbreak...).

    So, here's a link about getting that RC6.1 greenpoison jailbreak:
    An old thread - but post #51 (page 6) has a still valid link to the software: http://www.ipadforums.net/ipad-hacking/11513-greenpois0n-information-thread-please-post-here-6.html

    Hope this helps. Let us know how you are getting on.

    Marilyn
  9. f4780y
    Offline

    f4780y Super Moderator Staff Member

    Joined:
    Sep 11, 2010
    Messages:
    7,109
    Thanks Received:
    635
    Trophy Points:
    113
    Location:
    Troon, Scotland
    Ratings:
    +635 / 0
    Marilyn is absolutely right. Back up your 4.2.1 blobs with iFaith immediately.

    Use our Jailbreaking Methods sticky for the link to gp 6.1 - http://www.ipadforums.net/ipad-hacking/24377-jailbreaking-methods-ipad.html
    Download it only from the site linked in there (I just updated it so we don't have to point folks to that old thread).

    If you are having trouble running GP it is probably an issue with Windows, especially if you are on Vista. Make sure you run the program as and Administrator, and it may be best to set the compatibility options to "Windows XP Service Pack 2".

    To answer your first post questions,

    1 You are misunderstanding what the integration with Cydia means in TU. It will retrieve any SHSH blobs you have saved on Cydia servers down only your local PC, but it can't magic them up out of nowhere. If you don't have blobs saved on Cydia (and you don't), you won't get any. It does not send your blobs TO Cydia ever.

    2. Your iPad is only operable with a tethered JB if you have not installed Mobile Substrate or anything else which hooks into the Kernel. Even then Safari won't work. However, it is not practical to do this when you are jailbroken. Without hooking into the kernel you can do almost zilch in terms of a worthwhile overall JB experience. So, long story short, if you a tethered and need to reboot, you need to get back to your PC, otherwise you will hang at the Apple logo and be completely stuck.

    3. I made a jailbreak upgrade thread which you should look at regards this. It should still be valid for IOS5, although the way blobs work in IOS5 will change, but this does not make the overall backup and restore process redundant... Read about it here - http://www.ipadforums.net/jailbreak...des/26399-how-upgrade-your-ios-jailbreak.html

    Hope that helps and you get your 4.2.1 Jailbroken.
  10. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Mickey and f4780y thanks for detailed replies.

    I tried both versions rc5b2 and rc6.1 of greenpois0n. When it starts jailbreaking it simply reports back that it failed.

    Some details of my iPad (in light of raised concern regarding baseband version):

    Version 4.2.1 (8C148)
    Carrier Carrier 9.0
    Model MC497XL
    Modem Firmware 07.10.00

    I also tried iFaith v1.3.2 before creating this thread and sadly it gets stuck with the message Waiting for iPad 1 and I just look at an endless loop of green progress bar moving on the screen:

    [​IMG]

    There's something fishy about what happens during the work of iFaith. I'll describe loosely the sequence of events and you tell me if it's normal or not.

    I put iPad into DFU mode. iFaith picks this change up and starts uploading iBSS, I see "Exploiting with limera1n" screen (a green drop logo), I also see greenpois0n logo after which iPad's display lights up filled with solid white color and stays like that for some 10 seconds approximately, than it changes to display Apple logo, just like one during the normal boot, and eventually the iPad boots up as usual and iFaith is left there in the loop saying "Waiting for iPad 1".

    I tried this on Windows XP (run in VirtualBox virtual machine... shouldn't be a problem, I jailbroke iPhone 2G iOS 3.1.2 in this virtual machine and have iTunes managing the iPhone without any problems, it recognizes the iPad too and syncs up podcasts to iPad currently without any problems) and Vista Home Edition (with XP Service Pack 2 compatibility option, administrator rights all the way) as a normal OS, no emulation involved.

    So, something's not right. It all works for you guys but apparently not for me.
  11. f4780y
    Offline

    f4780y Super Moderator Staff Member

    Joined:
    Sep 11, 2010
    Messages:
    7,109
    Thanks Received:
    635
    Trophy Points:
    113
    Location:
    Troon, Scotland
    Ratings:
    +635 / 0
    Yes, this does sound as though it is a PC problem. You seem to be getting into DFU mode, but the communication between the software and the device is being interrupted. This is usually because of compatibility settings on Vista.
    As you say, using a virtual machine for XP is not normally an issue. I've used one myself. I'm not sure what to suggest, but would suggest you focus your efforts on the PC. Disable AV, firewall, etc. temporarily and try that... Because two completely separate tools which rely on DFU communication are failing in essentially the same way, that's why I think your PC is the problem. As you say, lots of other folks, including us, have used this stuff lots of times...

    Also, it must be the RC6.1 version. Not the earlier one.

    Can you get access to another PC with iTunes? GP only takes a few minutes to do its thing...
  12. graywolf
    Offline

    graywolf iPad Super Guru

    Joined:
    Aug 22, 2010
    Messages:
    3,655
    Thanks Received:
    35
    Trophy Points:
    0
    Location:
    Raleigh, NC USA
    Ratings:
    +35 / 0
    I see rc5 beta 2. DONT USE THAT. like f4780y said, use rc6.1.
  13. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Yes, I do have access to another PC but I'm not sure why I would need iTunes on it. I'll try everything on a another computer and report back as soon as I have any results :) Hope it works, damn, because I want to apply a bunch of tweaks from the awesome master list you put together guys :]

    By the way, I think it's worth noting, when I power off the device via red slider button it does something I've never seen on few iPhones before. Before it's screen goes completely blank, it turns dark but you can tell it still has power delivered because of a white-blueish tinge all over it, then a signature busy state indicator in the form of a partitioned circle appears and I think the next thing that should happen is the device powers off, but in my case it does something peculiar, it actually shows a lock screen again but only briefly for a second and a split one perhaps and then goes completely dark, i.e. powered off.
  14. f4780y
    Offline

    f4780y Super Moderator Staff Member

    Joined:
    Sep 11, 2010
    Messages:
    7,109
    Thanks Received:
    635
    Trophy Points:
    113
    Location:
    Troon, Scotland
    Ratings:
    +635 / 0
    You will need itunes installed. No drivers otherwise. I don't just make this stuff up you know :D
    Last edited: Aug 24, 2011
  15. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    haha yeah, I know :) I just tried as you suggested to run iFaith on another PC and it worked! Luckily, I now have SHSH blobs for my iPad.

    I then tried greenpois0n rc6.1 and it failed again. This time it got as far as lighting up the display with solid white color, then displaying the following lines on the iPad's screen:

    And that's it, it gets stuck there, even though the greenpois0n app shows Jailbreak complete message and Quit button.

    I tried this even on my dad's Lenovo laptop only to see exactly the same behavior and exactly the same message as quoted above.

    Well, what can be wrong now? :)
  16. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Just to be clear, greenpois0n was run on two different PCs and I got the same results.
  17. graywolf
    Offline

    graywolf iPad Super Guru

    Joined:
    Aug 22, 2010
    Messages:
    3,655
    Thanks Received:
    35
    Trophy Points:
    0
    Location:
    Raleigh, NC USA
    Ratings:
    +35 / 0
    I had to restore a while ago and had to jailbreak 3.2.2 for the iosx2 thing. Green poison and redsnow fail a million times, but then one tine, it just worked. I still don't know why. But I am on 4.3.3 now. And I used snowbreeze. But I don't think they have updated snowbreeze for 4.3.5 yet.
  18. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    Well, I went ahead and tried to create a custom signed 4.2.1 IPSW with iFaith but it stucks with the bird-phone logo and the progress bar won't move. iTunes eventually bails out and complains about USB issues (or something even more general like antivirus software, firewalls, routers etc.). Tried to times, same negative result. I was hoping to apply greenpois0n after that but it just doesn't work.
  19. f4780y
    Offline

    f4780y Super Moderator Staff Member

    Joined:
    Sep 11, 2010
    Messages:
    7,109
    Thanks Received:
    635
    Trophy Points:
    113
    Location:
    Troon, Scotland
    Ratings:
    +635 / 0
    Just checking, because all your problems do point to USB / connectivity issues, you are plugging directly into the main USB sockets on your PC, yes? You are not plugged into a hub or monitor or keyboard or anything else like that. You should always do this stuff connecting directly to the motherboard if you can...

    I'm pretty stumped. Everything points to the PC being the problem, but it's so long since I did a 4.2.1 JB, and I don't have a device suitable to test it at the moment... Sorry.
  20. IvanLezhnjovIV
    Offline

    IvanLezhnjovIV iPF Novice

    Joined:
    Aug 17, 2011
    Messages:
    19
    Thanks Received:
    0
    Trophy Points:
    0
    Ratings:
    +0 / 0
    You should keep in mind that I tried the same jailbreak on a few different computers and on one of them, a Lenovo netbook, I was connected directly to its motherboard ports, while on the other PC I was connected via front panel extension (not sure if this is what it's called but the idea is that you can have USB ports on the front panel of your tower case that's usually connected by the cords to a computer's motherboard).

    With that said I want to say that I've jailbroken my iPad. It runs untethered, jailbroken iOS 4.3.5 but there are interesting details I want to share and which I'm sure you're going to love to hear about.

    I'll start by telling what failed for me first. I was very much determined to jailbrake 4.2.1 because I wanted an untethered jailbreak so I tried greenpois0n but it just never went beyond that first output of text that I quote in earlier post. As you all know it should be followed by a larger output of onscreen text but that never happened. I left iPad in such state and eventually, after some 20 minutes perhaps it simply rebooted with stock iOS. No jailbreak happened. I tried this on tower PC and netbook, both running Windows XP Professional.

    As I've successfully saved SHSH blobs for iOS 4.2.1 I decided to test custom signed IPSW firmware of this version but I saw no more success than with greenpois0n. The farthest I got with it was seeing a phone-bird logo instead of Apple's logo with a progress bar across the screen that never moved. The iPad would just sit at that stage and never progress forward. Eventually iTunes would bail out saying, in error code speak, that something might be wrong with USB or more general guess, like anitivirus or firewall software preventing iTunes from functioning properly.

    So, I realized I was getting nowhere at all with all this and made a decision to upgrade to the latest iOS v4.3.5 and do a tethered jailbreak. It's not THAT bad, but annoying of course. Well, I followed this guide :

    and ended up with tethered jailbroken iPad. I can't tell you how much I was surprised to learn that the iPad would actually DO boot without the assistance of redsn0w! It wasn't just a fluke, I've rebooted it some 5 times already perhaps and it works each time.

    If booted without the redsn0w assistance Cydia doesn't start up as well as Safari but those two applications are the ONLY ONES THAT DON'T WORK! Everything else works just fine.

    I went ahead and experimented a bit and added some software from my iTunes library that I use with iPhone (some of which turns out is classified as suitable for iPad too).

    So, I added new apps to iPad booted without redsn0w assistance from iTunes library and some from App Store iPad native app and rebooted the iPad without redsn0w assistance too. All the new apps would work as I hoped they would, again only Cydia and Safari wouldn't work.

    I then tethered booted iPad with the help of redsn0w and checked the apps, they all worked just as before without any problems, only this time Cydia WOULD start as well as Safari. I added new soft again, rebooted without the redsn0w assistance and the apps would work, but Cydia and Safari.

    I also tried to add apps from a different computer (I've iTunes library setup as a shared DB by two of my personal computers for convenience and failover concerns) and that worked too in the same fashion as described above.

    Which compels me very to conclude that my tethered jailbreak turned out to be, in fact, ALMOST an untethered one. It's a very pleasant surprise that I didn't even hope to see. I was expecting a sturdy, tethered jailbreak that wouldn't let me boot and use 99.9% of apps on iPad if it's attempted to boot without redsn0w assistance.

    I don't complain at all lol I guess I deserve it after all the trouble I went through only to see 4.2.1 jaibreak that works so easily for a lot of people fail consistently for me :D

    Seriously, though, why does it boot and 99.99% of apps work? Is this how tethered jailbreak is supposed to work with iOS 4.3.5? I saw videos on YouTube for 4.2.1 and those tethered jailbroken iDevices wouldn't boot ever. Really, this can't be a fluke or magic there has to be some logical explanation to this. Any ideas?

    Well, three computers, 2 notebooks and one desktop, and very inconsistent behavior... I don't know what to think! Could it be the iPad itself? It seems to work pretty stable, though.
    Last edited by a moderator: Aug 24, 2011

Share This Page

Search tags for this page

can't update ipad 1 ios 4.2.1to ios 5.1.1

,

do you need to jailbreak an ipad 1g wifi

,

fake jailbreak without computer 4.2.1

,

ios 4.2.1-8c148(iphone)shsh blobs downloads

,

ipad 1 4.2 blobs

,

ipad 1 jailbreak 4.2.1 without computer

,

jailbreak 4.2 no computer

,

shsh blobs ipad 2 no jailbreak

,

stock ios 4.2.1

,

update ipad 4.2.1 no computer