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Discuss [NAND] No supported NAND found at the Hardware - Hackint0sh.org; You have company... Same thing happened to my iphone last week.. it took a fall ...
  1. #11
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    You have company...

    Same thing happened to my iphone last week.. it took a fall and it doesnt work anymore, it goes into recovery mode everytime i connect to my laptop. Trued with 2 different laptops and different versions of itunes.

    ibooter printout is as follows


    **************************************
    iBooter tool by cmw (cmw@toc2rta.com)
    Based on Geohot's kernel driver
    Check out Main Page - iPhone Linux
    **************************************


    00 00 34 12 00 00 00 00 00 00 00 00
    00 00 34 12 00 00 00 00 00 00 00 00
    patch_list: 1801fb6c, patch_count: b


    =======================================
    ::
    :: iBoot, Copyright 2007, Apple Inc.
    ::
    :: BUILD_TAG: iBoot-204.3.14
    ::
    :: BUILD_STYLE: RELEASE
    ::
    =======================================

    [FTL:MSG] Apple NAND Driver (AND) 0x43303033
    [NAND] Device ID 0x2555d5ec
    [NAND] BANKS_TOTAL 4
    [NAND] BLOCKS_PER_BANK 8192
    [NAND] SUBLKS_TOTAL 8192
    [NAND] USER_SUBLKS_TOTAL 7744
    [NAND] PAGES_PER_SUBLK 512
    [NAND] PAGES_PER_BANK 1048576
    [NAND] SECTORS_PER_PAGE 4
    [NAND] BYTES_PER_SPARE 64
    [FTL:MSG] FIL_Init [OK]
    [FTL:MSG] BUF_Init [OK]
    [FTL:MSG] VFL_Init [OK]
    [FTL:MSG] FTL_Init [OK]
    [FTL:MSG] VFL_Open [OK]
    [FTL:WRN] Failure running _LoadFTLCxt!
    [FTL:WRN] Recovering NAND Data Structures - this will take some time!
    [FTL:WRN] _FTLRestore OK!
    [FTL:MSG] FTL_Open [OK]
    Boot Failure Count: 0 Panic Fail Count: 0
    USBMPInit()
    Endpoint direction info:
    EP0: BIDIR
    EP1: BIDIR
    EP2: BIDIR
    EP3: BIDIR
    EP4: BIDIR
    EP5: BIDIR
    usbfc_menu_init()
    Entering recovery mode, starting command prompt
    ]
    ] radio detect
    radio detect
    Radio board detected.
    ] radio version
    radio version
    Unknown
    ]



    Radio version is shown as unknown. Any help on this?

    Thanks


  2. #12
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    Quote Originally Posted by krsh77 View Post
    ] radio detect
    radio detect
    Radio board detected.
    ] radio version
    radio version
    Unknown
    ]



    Radio version is shown as unknown. Any help on this?

    Thanks

    It seems corrupted modem?

  3. #13
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    To ulfurk, I would suggest trying to get a hold of a good logic board and save yourself the headache of trouble shooting on a component level. I would guess that VERY few people actually have the knowledge and equipment to properly troubleshoot the problem.
    I've seen quite a number of cases on the net of people dropping their phones which cause the phone to die, even though there may be no signs of serious trauma.
    I also noted that some phones fry when being attached to a fire wire charger while others do not. And I've also noticed varying build qualities on new units, most great, some not so good.
    If I had to make a guess, I'd say that there may have been a few bad batches, or maybe even factories on the whole at fault putting out sub standard parts.
    Like the trace frying on one comm board, but not the other when connected to fire wire? If they were all built the same, they should mostly behave the same.
    I'd guess that the fall may have fractured a weak trace somewhere in your logic board which is causing your headache.
    I've seen some pretty strange things while working on 2G phones. Thankfully, I've not seen the same sort of things so far with 3G phones.

  4. #14
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    Hi Tony,

    Is the Unknown Radio version related to a broken communications board? or is it the Logic board?

    any help is much appreciated.

    -Kris

  5. #15
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    Hi kris,

    Since the baseband (radio) resides on the comm board, it is most likely your comm board that is faulty. There are two solutions in the hardware section that are for power up poblems that may work for you. Both solutions require some pretty good soldering skills. If you're up to the challange, I can point you to the threads. Can't do it now because I'm on my iPhone (grumble.. No cut&paste).


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    hi Tony,

    Thanks for the response. Are you referring to the jumper setup which bypasses some charging circuit? Please let me know the threads, i am up for the challenge rather than have a bricked iphone

    - Kris

  7. #17
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    Hey Kris,

    Feeling adventurous? Here is one solution:
    http://www.hackint0sh.org/forum/f131/5901.htm
    I've tried this on two phones that did not power on, and both times did not work for me. But as you can see in that thread, it has worked for others.

    Then there's this:
    http://www.hackint0sh.org/forum/f131/19204-2.htm
    I've done this on at least 5 phones, and it worked like a charm each time. A few of those phones would only power on when connected to USB, and showed the iTunes restore image, then would power off after being disconnected (despite being charged overnight).
    BTW, the picture shows the jumper connected to the third pad in from the intel chip (there are 4 side by side)

    Either way, you should have a fine tip soldering iron, and some sort of magnifying glass, as the solder points are tiny.
    From personal experience, you should try the second one first, simply because I can verify that it does work as long as you do it right. I'm fairly confident that the second method will work for you, but we won't know til you try it. Good luck, and let me know if you got it working or not.

    Cheers,
    Tony

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    Quote Originally Posted by tony604 View Post
    Hey Kris,

    Feeling adventurous? Here is one solution:
    http://www.hackint0sh.org/forum/f131/5901.htm
    I've tried this on two phones that did not power on, and both times did not work for me. But as you can see in that thread, it has worked for others.

    Then there's this:
    http://www.hackint0sh.org/forum/f131/19204-2.htm
    I've done this on at least 5 phones, and it worked like a charm each time. A few of those phones would only power on when connected to USB, and showed the iTunes restore image, then would power off after being disconnected (despite being charged overnight).
    BTW, the picture shows the jumper connected to the third pad in from the intel chip (there are 4 side by side)

    Either way, you should have a fine tip soldering iron, and some sort of magnifying glass, as the solder points are tiny.
    From personal experience, you should try the second one first, simply because I can verify that it does work as long as you do it right. I'm fairly confident that the second method will work for you, but we won't know til you try it. Good luck, and let me know if you got it working or not.

    Cheers,
    Tony


    Hi Tony,

    I opened up the iphone last weekend and removed the shielding of the board. however i could not figure out the exact location on the board where i have solder the jumper. It will be very very helpful if you have a high resolution picture that shows the location on the board.

    Thanks a ton for you help
    Kris

  9. #19
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    Quote Originally Posted by ulfurk View Post
    After going at it for a while (trying to fix my iPhone) I gave up on it and returned to using my old Nokia E65.

    Now I'm becoming increasingly irritated by that phone again (it's so halfassed it's unbelievable) and started missing my iPhone.

    I really want to get it up and running again and started digging around.

    I hate to bring back a dead thread like this but I just find it so hard to believe that after all this time no one else has run into a problem like this since then...

    I must be the unluckiest person ever


    Hey! you are not alone, my story is very very similar to yours.
    I got the same text from iRecovery

    "NO SUPPORTED NAND FOUND"

    So I thought...If this program cant even read the NAND chip, that means that communication is broken somewhere. I must say that my iphone just like yours also fell from chest height. I have opened many iphones 3g/2g in the past so I was brave enough to take the motherboard out, identify the NAND chip and take a look at it with a magnifier... I couldnt find ANYTHING! Everything looked okay, no broken pins or anything... anyways I am seriously thinking about reflowing one side of the chip and see if that works, problem is I do not have the tools to do it. I am a mechanical engineer but have worked a bit with electronics.

    Have anyone here worked on this problem? Replacing a NAND chip or reflowing the pins?

    Any help or comments are well received.

    Thanks!

  10. #20
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    Quote Originally Posted by eduardomi View Post
    Have anyone here worked on this problem? Replacing a NAND chip or reflowing the pins?

    Any help or comments are well received.

    Thanks!
    I've removed and replaced a NAND before using heat gun on a iPhone 2G.
    It worked the first and second time, but I screwed up the third time I swapped the chip(s).

    Basically, you're going to want to have the board held up with small clips; making sure not to stress the board or flex it.

    The heatgun I used had a low and high setting; I used the low setting. You want low airflow, high heat. This is to avoid blowing pieces off the board that you didn't intend to relocate

    Aim it and evenly heat the chip, use tweezers to carefully remove the chip from the board.
    If your NAND is stacked and you only want to reflow, make sure to only do one side at a time, or else you'll have some major problems getting them stacked together again (like how I screwed up and eventually overheated the board)


 

 
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