Why won't my phone charge?

Question

iPhone 4 CDMA版

iPhone 4のCDMA版モデルです。修理はそのままパーツに作業をしますが、フロントガラスとLCDはユニットで交換しなければなりません。16もしくは32 GB / Model A1349。

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DPCLAW1 @dpclaw1

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投稿日: 2015年4月23日

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Why won't my phone charge?

My phone stopped charging. But, I could still play music through the dock connector using my iHome clock radio. So, I assumed the battery was the issue. I replaced the battery and the phone still would not charge. So, I opened the phone and looked at the dock connector piece. I noticed that the water indicator is not completely white. Nor is it completely red (indicating water damage). But, it is about half red. Could the dock connector be the problem? Will swapping it out allow me to charge the phone?

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Have you tried charging the iPhone via USB cable?

Tim さんによる2015年4月23日

Yes. Since replacing the battery I tried charging via multiple USB cables. The phone doesn't charge.

DPCLAW1 さんによる2015年4月23日

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Chris Opperwall @copperwall

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投稿日: 2015年4月23日

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That's interesting. Since you replaced the battery and the problem still persists I would think that replacing the Dock Connector would be your next best step to take. The only other problem I could think of would be that the cable you were using was faulty, but it sounds like you've tried that already.

There is a repair manual for that procedure with a list of tools and parts you'll need, as well as the instructions to do the replacement.

iPhone 4 Verizon Dock Connector Replacement

Hopefully that'll solve your problem!

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Is it possible for sound to play through the dock but not be able to charge the phone?

DPCLAW1 さんによる2015年4月23日

I'm not a Computer/Electrical Engineer, so you might want to take this with a grain of salt, but from what I've read, the 30-pin connector handles different functions with different pins. So basically some pins handle power, some handle audio transfer, some handle video transfer, etc. My best guess is that either one of the pins is not functioning, or the route that power takes through the dock connector may be having problems.

Here's an image I found of the 30-pin connector functionality breakdown if you're interested. http://images.bwbx.io/cms/2012-07-26/tec...

Chris Opperwall さんによる2015年4月24日

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Yes. Since replacing the battery I tried charging via multiple USB cables. The phone doesn't charge. — DPCLAW1
Is it possible for sound to play through the dock but not be able to charge the phone? — DPCLAW1
I'm not a Computer/Electrical Engineer, so you might want to take this with a grain of salt, but from what I've read, the 30-pin connector handles different functions with different pins. So basically some pins handle power, some handle audio transfer, some handle video transfer, etc. My best guess is that either one of the pins is not functioning, or the route that power takes through the dock connector may be having problems.

Here's an image I found of the 30-pin connector functionality breakdown if you're interested. http://images.bwbx.io/cms/2012-07-26/tec... — Chris Opperwall