Jailbroken iPhone 4 reboots after lock screen unlock have no backup.

Discussion in 'iPhone Tips, Help and Troubleshooting' started by Reckam, Dec 28, 2015.

  1. Reckam macrumors newbie

    Joined:
    Dec 28, 2015
    #1
    Hello, First post. I really need help, my iPhone 4 (iOS 7.1.2) reboots all the time after the lock screen. I don't have a back-up and I have tried to reapply the jailbreak. I used pangu 1.2.2 to jailbreak, so far I don't know what to do.

    I tried DFU and recovery. I also do not have any tweaks yet. I cannot enter safemode because I have not installed that tweak yet(as I said, no tweaks).

    Any type of help would be greatly appreciated.
     
  2. Reckam thread starter macrumors newbie

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    Dec 28, 2015
  3. Reckam thread starter macrumors newbie

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    Dec 28, 2015
  4. eyoungren macrumors P6

    eyoungren

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    Phoenix • 85037
    #4
    Safe Mode is not a "tweak" per se. It's simply telling the phone to not load Mobile Substrate on boot. It's effectively installed when you install Cydia. That is to say you don't actually look it up then go and install it because it's installed with Cydia.

    Volume up when booting, hold until you get to the lockscreen.

    And when you say you "tried DFU" do you mean you failed?
     
  5. Reckam thread starter macrumors newbie

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    Dec 28, 2015
    #5
    Yep. I failed DFU. I failed the DFU because I have "find my iPhone" on. I tried the safe mode too, but I get a respring, so it's no use. I'm about to try tinyumbrella. But I hope anyone could suggest anything else before I do this.
     
  6. eyoungren macrumors P6

    eyoungren

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    #6
    DFU should not fail because Find My iPhone is on. All that happens is that you need to enter your Apple ID and password after the restore.

    DFU Mode should show nothing on the screen. If you see a cable and an iTunes icon then that is not DFU mode, that's just plain old recovery mode.
     
  7. Reckam thread starter macrumors newbie

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    Dec 28, 2015
    #7
    Oh, ok. How do I enter DFU?
     
  8. eyoungren macrumors P6

    eyoungren

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    #8
    With your iPhone on, connect it to a computer with iTunes. Leave the phone connected to the computer the entire time.

    1. Turn iPhone off. If there is no specific way to do that, hold down Power and Home until the phone shuts off.
    2. Press and hold down the Power button for 3 seconds.
    3. Press and hold down the Home button on the front of your iPhone while still holding down the Power button.
    4. Keep holding both buttons down for 10 seconds.
    5. Let go of the Power button but keep holding the Home button for about 5 seconds.

    At the end of number 5 the screen will be black and iTunes will detect your iPhone in recovery mode. Upgrade and restore.

    Once that is all done you will be asked for your Apple ID and password. Sorry, but you've lost your jailbreak.
     
  9. Reckam thread starter macrumors newbie

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    Dec 28, 2015
    #9
    I will try this. Thank you, will give you feedback once done.
     
  10. eyoungren macrumors P6

    eyoungren

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    #10
    No problem, good luck to you!

    If it does not quite make sense, Google DFU mode iphone. Instructions are all over the net. ;)
     
  11. eyoungren macrumors P6

    eyoungren

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    #11
    I have to correct myself a bit. You said you have the iPhone 4. So, the restore will be back to iOS 7.1.2 because that is the farthest you can go. 7.1.2 is still jailbreakable so if you want to try again you can.
     
  12. Reckam thread starter macrumors newbie

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    Dec 28, 2015
    #12
    OK. Good to see people helping others. :D
     
  13. Reckam thread starter macrumors newbie

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    Dec 28, 2015
    #13
    I have no plans to jailbreak again though, thanks for letting me know anyways.
     

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