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Thread: iPhone reboots when I try to install ultrasn0w.

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I have an iPhone 3G 4.1 06.15.00 iPad BB. I rely on an unlock for T-mobile and I don't have any data plans. I used sn0wbreeze 2.9.1 to cook up
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  1. #1
    Green Apple katastrophic's Avatar
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    Default iPhone reboots when I try to install ultrasn0w.
    I have an iPhone 3G 4.1 06.15.00 iPad BB. I rely on an unlock for T-mobile and I don't have any data plans. I used sn0wbreeze 2.9.1 to cook up a 4.1 cFW. (I only ticked the box for the battery percentage). I put my iPhone into DFU mode using the steps from redsnow 0.9.6b6. I opened up iTunes, it recognizes it in recovery mode. I hold SHIFT + click on Restore and choose the 4.1 cFW I just created. I insert an unofficial AT&T SIM card in. It passes the emergency call screen. I turned off 3G, accessed my WiFi. Open Cydia and wait for it to download and load packages. I tap on install ultrasn0w, my iPhone reboots. What am I doing wrong? Please help. Thanks!

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    Livin the iPhone Life CaptainChaos's Avatar
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    I had the same problem yesterday. Stuck Like Chuck...iPhone 3G Boot Loop

    It is an issue with mobilesubtrate. I had to move up to 4.2.1 and it worked fine. I used Snowbreeze to enter pwned DFU mode and made sure that Tinyumbrella removed the Cydia redirect for the firmware verification (under advanced options).

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    katastrophic (02-25-2012)

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    Green Apple katastrophic's Avatar
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    Thanks! I guess the only way is to update to 4.2.1.. which is a bummer because the OS is really slow! I am currently on 3.1.3 right now but I want to install apps that require OS4 (Facebook). I heard that 4.1 is faster than 4.2.1 so that's why. I am going to restore to cFW 4.2.1. Thank you again(:

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