iPhone won't turn on after apple logo

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iPhone 3G

iPhone 3G是第二代iPhone。型号A1241，有8或16 GB容量，和炫酷的黑色或洁白的白色塑料背面。修复比第一款iPhone更简单。需要螺丝刀、撬撬工具和吸尘工具。

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Amy @amy93639

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发帖于: 2011年2月5日

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iPhone won't turn on after apple logo

Hi there,

I've been trying to repair my iPhone and have a feeling the battery is faulty, I was wondering if someone could supply me with the terminal readings for the battery?

what I mean by it not turning on is that you can boot it up ONLY with it plugged into the wall charger, then when I turn it on the apple logo appears as normal then after say 10-15 seconds the phone switches off, when I unplug the USB as it's showing the apple logo it switches off instantly. My dad reckons there's not enough power to go through it (he's good with technical things) therefore I think I need to replace the battery if the terminals aren't reading and I might need to change the dock connector.

My dad tested the battery and it states the right voltage amount but I think he said that one or two terminals aren't reading, could this be the problem?

Amy

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Amy, did you fix this already? Exactly the same problem here....

Thijs

由 Thijs 完成的 2011年2月6日

not as yet, had no replies

由 Amy 完成的 2011年2月6日

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pollytintop @pollytintop

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发帖于: 2011年2月6日

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It sounds like your dad is right. If your battery has good life (3.7 ish?) then I'd take a look at the dock- clean it thoroughly at USB port, clean no4 connector. If that doesn't work then replace it using the guide on top right of his page

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Well we managed to find out the problem, the fuse is blown on the board, my dad has jump wired it but we can't find a replacement fuse online. It still only turns on when plugged into the wall but goes to iTunes logo, when plugged into PC to try and get it restored it turns off. so annoying!

由 Amy 完成的 2011年2月26日

lots of people dont use a fuse.. they just make their own with the finest wire they can find, bit of solder and off you go...

由 pollytintop 完成的 2011年2月26日

Yeah he tried that but the same problem exists D:

由 Amy 完成的 2011年2月27日

If you already did as pollytintop suggested and your dad jumped the broken fuse, and your iphone works on a wall charger but shuts down on your PC, I would change the battery. I believe that this is a part of your problem. The output from the wall charger has a higher amperage than your PC. Of course connect your iPhone to a USB port that comes directly of the motherboard. On a PC it most likely a port in the back. Do not use a hub. Give it a try. I know you mentioned that your dad measured the voltage but the amperage is what is mostly missing to sustain your battery. Good Luck.

由 oldturkey03 完成的 2011年2月27日

good advice from oldturkey/wiseowl

由 pollytintop 完成的 2011年2月27日

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Amy, did you fix this already? Exactly the same problem here....

Thijs — Thijs
Well we managed to find out the problem, the fuse is blown on the board, my dad has jump wired it but we can't find a replacement fuse online. It still only turns on when plugged into the wall but goes to iTunes logo, when plugged into PC to try and get it restored it turns off. so annoying! — Amy
lots of people dont use a fuse.. they just make their own with the finest wire they can find, bit of solder and off you go... — pollytintop
If you already did as pollytintop suggested and your dad jumped the broken fuse, and your iphone works on a wall charger but shuts down on your PC, I would change the battery. I believe that this is a part of your problem. The output from the wall charger has a higher amperage than your PC. Of course connect your iPhone to a USB port that comes directly of the motherboard. On a PC it most likely a port in the back. Do not use a hub. Give it a try. I know you mentioned that your dad measured the voltage but the amperage is what is mostly missing to sustain your battery. Good Luck. — oldturkey03

iPhone 3G

iPhone won't turn on after apple logo

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