Revamped version of the iPhone 3G with faster processing speeds. Repair of this device is similar to the 3G, and requires simple screwdrivers and prying tools. Model A1303 / 16 or 32 GB capacity / black or white plastic back.

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Mute button is sensitive and vibrates occasionally


I'm unsure of the error in my iPhone 3GS.

I have a problem with the vibrator, it is very sensitive!

When I gently touch the mute button the phone will vibrate. Squeezing the phone lightly also starts a vibration.

When I have the phone disassembled, I notice that the vibration occurs immediately of the slightest touch back of the "Jack Flex Cable" (where the mute button switch is located). Link to picture at

You see those two gray plops above the red markings? When one touches there lightly it vibrates. The most sensitive spot of them all!!!

After assembled the device again it got even worse and vibrates when ever it feels like.

My question is...

What part needs to be fixed?

Is the vibrating motor over and out? or is it the "Jack Flex Cable" that must be replaced, what do you believe?



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2 Answers

Chosen Solution

It looks like mute switch problem. I have similar problem: when mute on, from time to time iPhone start to vibrate. This is because switch is not 'closed' all the times and vibration is the standard signal of activation mute mode. If this is the case switch has to be replaced to the new one.

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I have the same problem. How did you resolve it?

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