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Discuss Boot loop after several attempts to restore at the iOS 4.x (iPhone OS 4.x) - Hackint0sh.org; Hi guys, First of all, I'm new here but i've been using the community's ressources ...
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    Default Boot loop after several attempts to restore

    Hi guys,

    First of all, I'm new here but i've been using the community's ressources for quite a lot of time. Thanks guys, you're doing great.

    I'm having a major issue with my iPhone 3GS (os 4.0.1, jailbreakme). Two days ago, I decided to reboot it. I'm now stuck in the boot sequence: the Apple logo shows up for a minute or two. Then, a spinning wheel appears, stays for about 2 other minutes and then the iphone shuts down a reinitiate a booting sequence. And that over and over again.

    What I've tried so far:

    - home button + power button for ten seconds
    - restore the 4.0.2 firmware with iTunes (both in recovery mode and DFU mode and with two different computers)
    - using iRecovery; here's the output:

    =======================================
    ::
    :: iBoot for n88ap, Copyright 2009, Apple Inc.
    ::
    :: BUILD_TAG: iBoot-636.66.33
    ::
    :: BUILD_STYLE: RELEASE
    ::
    :: USB_SERIAL_NUMBER: CPID:8920 CPRV:14 CPFM:03 SCEP:03 BDID:00 ECID:00000086721DA30E IBFL:01 SRNM:[88924LBT3NP]
    ::
    =======================================

    [FTL:MSG] Apple NAND Driver (AND) RO
    [NAND] Found Chip ID 0x3294D79876 on FMI0:CE0
    [NAND] Found Chip ID 0x3294D79876 on FMI0:CE1
    [NAND] Found Chip ID 0x3294D79876 on FMI:CE8
    [NAND] Found Chip ID 0x3294D79876 on FMI1:CE9
    [FTL:MSG] FIL_Init [OK]
    [FTL:MSG] BUF_Init [OK]
    [FTL:MSG] FPart Init [OK]
    read new style signature 0x43313133 (line:375)
    [FTL:MSG] VSVFL Register [OK]
    [FTL:MSG] VFL Init [OK]
    [FTL:MSG] VFL_Open [OK]
    [FTL:MSG] YAFTL Register [OK]
    yaFTL::YAFTL_Open(l:2630): CXT is not valid . Performing full NAND R/O restore ...
    [FTL:MSG] FTL_Open [OK]
    Boot Failure Count: 6 Panic Fail ount: 0
    Entering recovery mode, starting command prompt
    (Recovery) iPhone$

    CXT is not valid? I have no idea what this means but it doesn't sound good.
    Plugging some iRecovery instructions doesn't work:

    Entering recovery mode, starting command prompt
    (Recovery) iPhone$ clearenv 1
    (Recovery) iPhone$ printenv
    (Recovery) iPhone$ seten auto-boot true
    (Recovery) iPhone$ saveenv
    (Recovery) iPhone$ fsboot
    (Recovery) iPhone$
    No output...

    I'm left clueless. I have read dozens of forum threads and I've not been able to figure it out. Needless to say that my phone is out of warranty.


    What's next:

    I'm planning to perform these operations:

    - try to downgrade to 3.1.3 (I saved my shsh at the time)
    - find a way to erase the nand (but i don't know how)

    Do you guys have any guess about what to do?

    Thanks,

    Jacques-Henri.



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    Quote Originally Posted by Jacques-Henri View Post
    Hi guys,

    First of all, I'm new here but i've been using the community's ressources for quite a lot of time. Thanks guys, you're doing great.

    I'm having a major issue with my iPhone 3GS (os 4.0.1, jailbreakme). Two days ago, I decided to reboot it. I'm now stuck in the boot sequence: the Apple logo shows up for a minute or two. Then, a spinning wheel appears, stays for about 2 other minutes and then the iphone shuts down a reinitiate a booting sequence. And that over and over again.

    What I've tried so far:

    - home button + power button for ten seconds
    - restore the 4.0.2 firmware with iTunes (both in recovery mode and DFU mode and with two different computers)
    - using iRecovery; here's the output:




    CXT is not valid? I have no idea what this means but it doesn't sound good.
    Plugging some iRecovery instructions doesn't work:



    No output...

    I'm left clueless. I have read dozens of forum threads and I've not been able to figure it out. Needless to say that my phone is out of warranty.


    What's next:

    I'm planning to perform these operations:

    - try to downgrade to 3.1.3 (I saved my shsh at the time)
    - find a way to erase the nand (but i don't know how)

    Do you guys have any guess about what to do?
    Try this: iPhone – Rock App Causing Devistation | Router Jockey

    Your problem is (likely) due to a bug in rock.app (cydia alternative)
    Please read the stickies & search forum before posting!
    How to report an iTunes restore/update fail in a useful manner
    -

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    iPhone 4 32GB (4.2.1, Redsn0w JB-monte) oldest SHSH 4.1
    iPhone 3GS 32GB (4.3.3; Pwnagetool) factory unlocked oldest SHSH 3.1
    iPhone 8GB (3.1.3; Pwnagetool) AT&T Locked - Unlocked with bootneuter

    -
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