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モデル番号はA1059もしくはA1099/20、40、60GBハードドライブ/タッチ反応クリックホイール

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iPod unresponsive after battery replacement

So, I just replaced the battery on my iPod 4th gen (slim 20 gb) today. I was pretty careful taking it apart, and used ifixit tools. I cracked the screen a month ago or so, so I cant see much. Anyways, my iPod won't respond now, with either the old battery, or the new one. Without the hard drive attached, it gives me the apple logo, and then a HDD error. But with it attached, I just get a battery error (I think, I can't really see). What's the problem? How can I fix it?

I'm getting a replacement screen in the mail in two weeks, so maybe I can get some information soon about the error messages.

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Check if the receptacle moves on the circuit board or is lifted at all. It shouldn't.

Look at the small solder joints and tight space. I watched a video on micro-soldering and decided NOT to try it yet, despite many years building electronic kits and some repair work. A shop estimated $180 while replacement boards or iPods are $40-50.

Ensure the new plug is fully seated and inserted correctly. My new batter had to charge via wall adapter, not my computer, for over a day! Hopefully, you got the right battery for your iPod; mine was of higher capacity, but such a long charge cycle surprised me.

Also, read all you can and ask for expert help from the place that sold you the battery. I am not a pro at this, just a guy like you with an iPod problem or two. Four days, on and off, and finally mine is ok.

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Gotcha. I'm gonna try to reseat it, because at this point I've got nothing to loose. If I managed to actually fix it, then great. If not I'll order a replacement board from the US I suppose.

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Try plugging this into your computer. If iTunes recognizes it then you probably have an issue with the screen. If iTunes does not recognize it my hunch would be there's an issue with the battery (as that's what you just replaced) or with the hard drive and accompanying components.

Double check the connections are tight and not damaged, reassemble and re-test. I'd lean towards a faulty battery if it was working fine before.

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I did plug it in to iTunes and it's not recognized. I've rechecked all the connections, and they're solid. NEITHER of the batteries work. The original one was fine, it just didn't have much capacity, but now it won't work at all.

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Despite being very careful, I partially pulled the surface mounted battery cable socket off the circuit board, slightly; not apparant at first, but enough to cause a similar problem. Re-soldering is not possible without special tools. That socketccalles for careful and delicate technique. I used the tip of an X-acto knive, very carefully, to JUST lift the retainer clip slightly; freeing the cable.

Also, ensure thsat the cable for the HD is inserted correctly. Reversed, can cause issues akin to the above. View videos at sites like this one.

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So basically, my logic board is screwed?

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How hard would it be to re-solder it? I've not done much, but it doesn't look too difficult to me.

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Timothy Watson さん、ありがとうございました！
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