Posted on - 4 February 2011 . Written by

What is UnTethered & Tethered Jailbreak ? Difference

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If you are a jailbreaker or tried looking for jailbreaking stuff , you must have come across the term untethered – tethered jailbreak. now what does that exactly mean.

Tethered and Untethered Jailbreak Difference :

Tethered Jailbreak : Having the jailbreak tethered means you have to connect your jailbroken device with your computer to boot it [turn it on] . Once switched off a tethered phone cannot be turned on just by pressing the power switch . This is a limitation of a tethered jailbreak solution . When a jailbreak tool is released , usually the tethered version comes first followed by the untethered version as the latter needs more critical coding at the developers part. A tethered device will remain stuck at the Apple Logo screen when you restart it after a power off . To get out of this you have to use tools like Redsnow and use the option “Just Boot Tethered Right now” as shown in the image below .

4.3.4 boot tethered redsnow

Un-Tethered Jailbreak on the other hand is independent and you can easily turn it on – off by pressing the power button. Nothing more to that . Untethered jailbreak is more convenient as you can carry around your phone without worrying about the device getting switched off due to low power or some other reason that needs restarting your phone .

I hope that clears many doubts. Please let me know if I missed something above through your comments below and I will be happy to add the detail. If you have any questions to ask , Just post one on the Jailbreak Forum [No Registration Required].

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26 Responses - Add Yours+

  1. Alexandre says:

    The launch of this program, does somehow means a step toward the unlock of Iphone4 with new and locked BB?

  2. Jim says:

    Thanks for the info!

  3. Alexandre says:

    It is NOT a info, it is a question!

  4. SeA BaZz says:

    Hi, I’m new to all this jailbreaking stuff. I have an iphone 4 4.2.1. I don’t intend on unlocking in and I want to have the option to reset the device to its natural state in case something happens to it. Can I do that with the new Untethered Jailbreak?
    I’d really appreciate the help.
    Thanks!

  5. Maff says:

    What does thethered and untethered mean when jailbreaking iPhone 4 (IOS 4.3)

  6. patrick says:

    I’m a new iPhone user. I got my phone jailbroken by a phone dealer, but I have no way to tell if my phone is jailbroken as ‘tethered’ or un-tethered’..

    • jujuba says:

      restart your phone. if it boots up fine then i reckon it is untethered. if it does not boot beyond the black apple screen there is a rather high chance that your phone is running on tethered jailbreak. hope this helps.

  7. Alfonso says:

    So I’m about to jailbreak my Iphone 4 and since I was ## and updated to 4.2.1, it has to be tethered. Question is, do I have to do the jailbreak process again everytime I install an app since it reboots it? This is a deal break for me, if it’s the case, I’m just going to have to wait for the un-tethered jailbreak which keeps getting pushed back

  8. new iphone user says:

    i tray to do jailbreak on mi iphone4 whit 4.3 and now my phone it doesen work any more. many errors and i dont know what to do..

  9. Hannes says:

    I was checking my mail and my ipod touch 4g, it suddenly turned off. It had plenty of battery left and even though I plugged it in the charger for three hours, it wón´t turn on. It´s dead. What can I do about it????

  10. alireza says:

    i jailbroke my 4.2.1 iphone but the same problem occurred. it was switched on and i couldn’t turn it on again. so i had to restore it. my question is that how can you connect it to your computer when it is not even switched on as the computer doesn’t recognize an iphone when it’s switched off. by the way after i restore it, i wasn’t able to jailbreak it again. what shall i do?

  11. Ash says:

    i jail break my new iphone4 using redsnow 0.9.6 rc16. followed the steps correct, but after complete installation done n the phone reboot. Hang at apple logo screen…nothing changed.i tried jail break still same..go to recovery mode and tried restore my iphone but whenever select 4.3.1 ipsw from itunes its say not compatible version. pls help..thx

  12. Theold_gamer says:

    from where we can able to download un-tethered Fremwear???

  13. Jigar Patel says:

    Hi friends I have iPhone4 and version is 4.3.5 I want to install Cydia so please help me but help me by giving untethered jailbreak

    My contact no is +919049475910 pls help me…

  14. Sebas says:

    I use snowbris to my iphone 4 on base 4.10 on firmware 4.2.1 then since to be good but i turn off and the problems begin i use someny times jailbreaking but its going off realy stock finaly i just upgrade to new vercion 4.3.5 with no jailbreak.

  15. Sree says:

    So many problems about the most famous smartphone called iPhone ! I also have an iPhone 4 unlocked with Garvey Sim. I am not going to upgrade or jailbreak it. I won’t purchase any iPhone again which is restricted its service to a particular carrier or applications. It is a pity to cry after purchasing an instrument with very huge price and alter it without getting any support from the manufacturer. There are so many smartphones available which tightly compete with iPhone or iPad. There is no need for jailbreaking or unlocking them.If we need an unlocking the service provider will unlock it without any question. They will give us full support in any problem we may face.

    But I do remember the top most support given by apple for their products if we obey what they wish.

  16. Mohd says:

    there is no othere way to jailbreak without stucking in apple logo?
    before i had iphone 4(4.3.5) & it was jailbroken when i turn it off it not stuk on apple logo & i update my iphone to ios5 and i jailbreak it now when ever i turn off it stuck on apple logo ,why?
    please,please help me ,give me the best answer and best guide to come out fro this situation

  17. Les says:

    updated iPhone 3gs o ios5 – was on Orange – got searching and no carrier then used redsnow to jailbreak and worked on orange fine but wanted to use it on vodafone.
    So used ultraslow to unlock and worked ok BUT when i turned off it was stuck in the apple screen and had to do a boot only on redsnow to get it back, but every time i turned the phone off i had the same problem.
    Not good as i work in a hospital and phones have to be switched off and can’t do a daily connection to the computer to restore it.

    Is it a ultrasnow problem? is there a fix?

  18. les says:

    Thanks for the link for tethered/untethered, I had read that but when jail broken and on orange I can turn on and off no problem. The problem was raised when i tried to unlock it with ultra snow and put another carriers sim in.

    Without ultra snow i can jailbreak and turn on and off but only with Orange sim in.

  19. iPhoneCraze says:

    Do anyone know if there is a link or jailbreak un- tethered only yet for IOS 5 on iPhone 4 yet?

  20. consaibot1347 says:

    What happens to apps installed using installous on my ipad? If I use an untethered jailbreak, will I still keep them, or will they be deleted? I don’t want to download them again, as it would take too long. What should I do? by the way, it is currently running software 4.3.5

  21. Trent says:

    Okay, my question is this. If I have a tethered jailbreak, can I ‘reboot’ without hooking to the computer?

    I am not talking about powering off, but rebooting from Sbsettings menu.

  22. FirstTimer says:

    Hi, im new both to iPhone and jailbreaking and i’m not sure about jailbreaking my iPhone ..
    Mostly because of the garanty disappearing.
    I Got an iPhone 4 with iOS 5.0.1 , and my questions are:

    1. Are there a jailbreak version for my iOS yet?
    2. What are the chances that jailbreaking my phone goes wrong?
    3. Is it clever or just plain stupid to jailbreak my phone?

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