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Not charging or syncing via USB, charges via Firewire

Recently acquired this as 'non-working.' Battery was completely drained. Plugging in to USB, it briefly shows as charging, then reverts to not charging, but apparently able to run off the power provided by USB. It also doesn't show up as a disk or in iTunes.

A firewire connection will provide the 'not supported' screen, but allow it to charge.

There have been some similar problems reported here that suggest a bad battery may cause behavior like this, but none seem to indicate that this is actually the solution. So is it a battery issue, or is the USB on this toast?

Répondre à cette question J'ai le même problème

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I have the same problem on 2 ipods, power up via firewire but can't get them to recognize in itunes or charge via usb.

Already replaced battery and use genuine apple usb cable. I'm out of ideas to solve this :(

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Sorry, looks like no one saw your question as it was tacked on to someone else. This is why we ask that people start their own questions.

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same problem here...i have already changed the baterry and tried many usb cables but still nothing (work fine but can not connect to pc). its gegining to irritate me :( any ideas? thx

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Sorry, looks like no one saw your question as it was tacked on to someone else. This is why we ask that people start their own questions.

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I would replace the USB cable with a high quality one. I've seen this a lot, and the cheap USB cables just don't work correctly.

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The same USB cable works fine with multiple other units. So cable is fine.

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Mayer is on the right track, if it isn't the USB cable itself, then start with the battery replacement. Bad batteries do cause peculiar behavior

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I've actually seen on a few iPods and one first gen iPhone I have where the USB controller on the board goes out. Only way to fix is a new board in that case.

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How can I identify the USB controller? I might be able to replace it with proper equipment.

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mgb2 sera éternellement reconnaissant.
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