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    Ipod shuffle 4G USB cable pinouts

    I am looking for the ipod shuffle 4G USB to 4 way 3.5 mm jack plug circuit

    •   Alt28th March 2012, 09:34

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    Re: Ipod shuffle 4G USB cable pinouts

    I started life with nothing and I've still got most of it left. (Seasick Steve)



    •   Alt28th March 2012, 09:37

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    Re: Ipod shuffle 4G USB cable pinouts

    Thank you Keith
    I have tried those pinouts. It does not work. It appears that the 4G device uses different pinouts. The +5V is also connected to the Al body of the device . That will short the USB 5V if the plugged in 4G device makes contact with the PC enclosure?
    Regards



    •   Alt28th March 2012, 10:33

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    Re: Ipod shuffle 4G USB cable pinouts

    I found this info on the web :
    I have disassembled a Shuffle 4G cable. Under its Type-A USB
    connector's cover is a small pcb carrying three chips and a
    few passive components. One of them is a leggy chip that
    could well be a microcontroller.

    So this cable is active for sure and this would explain the
    high-impedance state of the powered-down cable. It would be
    helpful if another user could pry-open the cover of their
    3G/4G cable, I believe these are the same, and check this
    embedded chip existence.

    Worryingly, such a design creates a horrible opportunity to
    create malicious USB exploit cables and passed-off as
    innocuous Apple originals. I note that there are plenty of
    Shuffle 4G USB cables on eBay. I say worryingly because my
    cable ''is'' a replacement from eBay - I'd lost the original
    cable.

    Another curious and perhaps revealing situation I found. I
    tried connecting an Archos cable which is wired pin-to-pin
    in the same manner as the 1G/2G shuffles - It worked; yet
    only once. This one-off behaviour was repeated on a second
    machine, where it worked, but just the once. thereafter the
    Shuffle was completely invisible to the computers using this
    cable.



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