Second generation of iPhone. Model A1241 / 8 or 16 GB capacity / black or white plastic back. Repair is more straightforward than the first iPhone. requires screwdrivers, prying, and suction tools.

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Volume down button not working.

Hello to all,

I have an iPhone 3G that had sea water damage. When I dismantled the phone, connector 5 and its socket of were heavily corroded but I've already cleaned it. I've managed to make the endless reboot stop by cleaning the terminals.

I have one more problem though, volume down button is not working. I wonder if this is a ribbon cable or motherboard problem. Any suggestions how to troubleshoot this problem? Thanks.

Answered! View the answer I have this problem too

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+ for the successful repair

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those buttons are simply some kind of metal foils.

you can open them and clean them too.

if there is something black inside - use a needle to scratch the stuff from the metal (don't bent the metal too much!)

UPDATE

since it's a board problem i would check the area around connector 5 (bottom left on the picture)

Block Image

CLICK for a HUGEer version of the picture

i would also take a closer look at the areas with "power" stuff

good luck

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+ Ralph

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nice work +

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Yes Markus, I agree. I even filed the tip of my soldering iron just to make it more pointed. I had to rest my arms somewhere to prevent my hands from shaking. I'm also not satisfied with my magnifying glass, I should have bought one that's more powerful.

I've seen one of those USB microscopes. They're only good for inspection. I think it's difficult to use it while soldering. Thanks again for your comments. The volume down key is working again. I hope it stays like that forever. =)

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maybe a good video camera would do the job, mabe i'll try that

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I use headband loopes like these: http://www.google.com/imgres?imgurl=http...

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thanks for the link richard. maybe i'll try one of those pieces.

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Gaijin will be eternally grateful.
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