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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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What exactly is going through cables 1, 2 and 3?

What exactly is going through the cables numbered 1, 2 and 3?

More concretely, I want to know through which one comes the sound to the "upper" speaker. (I figured it must be either 2 or 3)

edit: I am also interested where the GPS data goes

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Cable 1- Touch screen (digitizer)

Cable 2- Display (LCD)

Cable 3- Earpiece speaker, proximity sensor, and ambient light sensor

Cable 6- GPS antenna

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