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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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iPhone still thinks it's in headphone mode after replacement part

I replaced headphone jack successfully but my phone still thinks it's in headphone mode. When I connect the headphones the sound come out through them. When I unplug them the iPhone still thinks the headphones are there.

I test this logic Board in two iPhones and the same error, so the problem is in the logic I guess Any ideas?

UPdate: the iPhone is always in headphone mode, even if I plug or unplug headphones (originals)

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I think there is a problem with the detection circuitry on the logic board. You would have to get another logic board to correct this problem.

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Yes your are right. The problem is the logicboard.

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Your iPhone is only made for use with an iPhone Headphones which if compared to a Standard Headphone jack are different.

Use the original headphones and plug them into your H/P jack and unplug.

This is a common problem only caused by use of standard headphones.

The iPhone H/P jack has 3 sections, left, right and mic.

You will see on the jack 3 sections.

If you are going to use a regular headphones. you need an adapter.

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The headphones used was the original ones.

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