Cannot Blackrain onto new 3gs

Discussion in 'Jailbreaks and iOS Hacks' started by navigates, Nov 19, 2009.

  1. navigates macrumors 6502a

    Joined:
    Jul 13, 2008
    #1
    Hi all. I can successfully run blackrain on my phone but a friend just got a new iphone and when I run blackrain, the phone after reboot goes into recovery mode. Is there a way to fix this issue?

    Can someone help please.
     
  2. Vandam500 macrumors 68000

    Vandam500

    Joined:
    Sep 29, 2008
    #2
    Is it jailbroken after you run blackra1n? Also, since its a new 3GS, then most likely it has the new boot rom which means everytime you restart the phone you will need to run blackra1n again. It's called a tethered jailbreak. There isn't anything you can do about that now. Only thing is don't restart the iPhone or let it run out of battery.

    Hopefully Geohot will be able to find a hole in the new 3GS's.
     
  3. iPhone-power macrumors 6502a

    Joined:
    Nov 12, 2009
    #3
    If it is a new 3GS, then it has the new bootrom which requires a tethered jailbreak every time you restart it. This means you need a computer, USB cable and copy of Blackra1n every time you need to restart or reboot.

    Google for the details.
     
  4. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #4
    Sounds like it might need a tethered jailbreak. Try re-running blackra1n and see if that gets you past the boot logo. If it does, then try rebooting again and if you have the same experience, you're tethered. That means you will need to connect to a computer and run blackra1n again every time you reboot; all your jailbreak apps will be preserved, but your phone won't be able to boot on its own.
     
  5. shadowbird423 macrumors regular

    shadowbird423

    Joined:
    Sep 8, 2009
    Location:
    Chapel Hill
    #5
    This will probably work. When I jailbroke a friends iPod Touch 3g I had to run Blackra1n twice, once to jailbreak it, and once to get it to boot because it turned off (the only disadvantage to jailbreaking these at the time).
     
  6. navigates thread starter macrumors 6502a

    Joined:
    Jul 13, 2008
    #6
    Thanks All.

    i'll try to get it returned back to the Apple Store and buy another one from Best Buy. Best buy's have a slightly older stock of phones. So that should be good.

    Is there a serial number I should look out for?
     
  7. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #7
    Look at the 4th and 5th digits. Those represent the week of manufacture. The lower the better. Below 37 is guaranteed safe, 37-40 is iffy, 41 and higher is almost certainly tethered.
     
  8. LIVEFRMNYC macrumors 603

    Joined:
    Oct 27, 2009
    #8
    I'm week 39 and had no problems with blackra1n. I guess I lucked out, tethered JB would suck.
     
  9. macbrooke macrumors regular

    macbrooke

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    Jun 21, 2006
    Location:
    Toronto, Ontario!
  10. Marecki macrumors newbie

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    Oct 3, 2008
  11. radioBirdman macrumors newbie

    Joined:
    Nov 25, 2009
    #11
    Black 16GB iPhone 3GS | Untethered JB on 3.1.2 (Mine)
    White 16GB iPhone 3GS | Untethered JB on 3.1.2 (Wife)

    heh... this is exactly the same as my wife and I.

    How can I tell which week my phone was made? I only got it last week and it ran blackra1n no worries at all.
     
  12. laaate macrumors newbie

    Joined:
    Dec 2, 2009
    #12
    Tethered

    Is there any other downsides in tethered jailbreak than you have to jaibreak it again when you switch it off?:confused:

    sorry for my bad english
     
  13. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #13
    Well, this is not quite an accurate description of a tethered jailbreak. A tethered jailbreak requires you to boot your iPhone with the help of a computer any time your phone reboots (not just when you turn it off, but when your phone needs to restart after a crash or when you install certain apps in Cydia, or when your battery dies, or you do a hard reset). And it doesn't "re-jailbreak" your phone; your phone will still be jailbroken and all your jailbreak apps and settings will be in place. It is simply that a phone with a tethered jailbreak cannot boot on its own. Other than that, there is no difference between a tethered or untethered jailbreak.

    Please note that your phone does not reboot when you put it into sleep mode using the sleep button on the top of the phone.
     
  14. Confessions macrumors newbie

    Joined:
    May 31, 2009
    #14
    42, it sure sucks. Would of never jailbroke my phone if I didn't need to unlock it :\
     
  15. quso macrumors newbie

    Joined:
    Dec 3, 2009
    #15
    hello i have the same problems im 42 doest mean i will not be able to jailbreak my iphone 3gs or maybe there is another way to jailbreak it???
    im on 3.1.2 with 5.11.07

    PS plz help
     
  16. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #16
    I repeat, every iPhone can be jailbroken. Your jailbreak will probably be a "tethered" jailbreak, which brings with it some inconvenience. Only you can decide whether the advantages of a jailbreak outweigh the inconvenience of being tethered.

    Let me try to explain. Every iPhone has a chip in it which contains a tiny program called iBoot. iBoot is the phone's bootloader, the program that tells the phone how to load the operating system. During this process, the OS checks the OS to make sure that it is the official version provided by Apple. If it is not the correct version, it will normally refuse to boot your phone.

    Clever hackers discovered a weakness in iBoot (which they called the 24kpwn hack) that allowed them to inject their own code into iBoot to bypass this security check and boot a jailbroken version of the OS that iBoot normally would not boot. Basically, by crashing iBoot at a certain point in the boot process, they could inject 24kb of their own code and iBoot would think it was perfectly normal. This code disabled the security check, and it was the only known way of getting a jailbroken iPhone to boot itself.

    As of sometime in October, Apple started shipping iPhones with a new version of iBoot. This new version patched the 24kpwn hack, meaning we lost our only known way of modifying iBoot so that it can boot a modified version of the OS. It is still possible to use a computer to bypass iBoot, but one can't convince iBoot to bypass itself. This is why the new iPhones can have only a tethered jailbreak.

    Does your phone have the new iBoot? There are ways to check. If your iBoot version is 359.3, then you can have an untethered jailbreak (whether on 3.1.2 or any other version of the OS); if it is 359.3.2 or 359.3-2 you cannot, at least not now. It has nothing to do with the version of your OS, only the version of iBoot.

    Right now there is no prospect for a new iBoot hack, and it is therefore impossible to predict when or even if one will be found. For now you should assume that any phone with the new iBoot is not untetherable.
     
  17. quso macrumors newbie

    Joined:
    Dec 3, 2009
    #17
    thanks alot for expaining whats going on i think the only thing left for me is waiting
     
  18. gadgetmom88 macrumors newbie

    Joined:
    Jul 29, 2009
    #18
    I'm curious for anyone who is currently using a tethered jailbreak, is it worth it? My iPhone died and was replaced by Apple with the new iBoot (Damn Apple!!!). I want to be able to tether with the phone, and I really miss being able to multitask, but I'm surviving. Wondering if the tethered option is actually doable for anyone.
     
  19. ajneuman macrumors newbie

    Joined:
    Dec 22, 2006
    #19
  20. dhlizard macrumors G4

    dhlizard

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    Mar 16, 2009
    Location:
    The Jailbreak Community
    #20
  21. Night Spring macrumors G5

    Night Spring

    Joined:
    Jul 17, 2008
    #21
    I have an ipod touch 3g that's been on a tethered jailbreak since blackra1n first came out, and I'm finding it quite doable. It really is much less hassle than I thought it would be. I've had to use blackra1n to restart my ipod less than five times since I first jailbroke it, and all because I was installing / upgrading a mobile substrate related package from Cydia.

    That said, it's an ipod, so if it ever locks up in the middle of the day and needs to be rebooted, it's not a big inconveience for me to be without my music and games for half a day. If you rely on your iPhone as your primary phone, it might not be a good idea to have it on a tethered jailbreak. It really depends on how you use your device, and whether you have access to a computer/usb cable/blackra1n if you ever need to restart your iphone.
     
  22. dhlizard macrumors G4

    dhlizard

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    Mar 16, 2009
    Location:
    The Jailbreak Community
    #22
    From post # 7

     
  23. quso macrumors newbie

    Joined:
    Dec 3, 2009
    #23
    go to settings > general > about look at serial # 4th and 5th digit
     
  24. foreignconcepts macrumors member

    Joined:
    Dec 31, 2008
    #24
    I just got a replacement iPhone 3G (16 GB, Black) and it was produced on week 46 (of 2009? That can't be right, it was replaced on Nov 20th, which would have been the 46th week of 2009...unless I have a really new iPhone 3G). Am I likely to need a tethered jailbreak?

    EDIT: Nevermind, third digit of serial number is a 9, so it was built in 2009... looks like I have an iPhone that is only 3 weeks old!
     
  25. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #25
    It is not unusual for people to receive iPhones manufactured in the current week. Most stores don't keep a huge inventory, nor does Apple appear to.
     

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