The Home button on my iPhone 4 has been getting progressively less responsive over the last 2 months. It was at the point where I was having to press it 7-10 times for it to register a click… that is, until a co-worker reminded me of one of Khoi Vinh’s posts from January 2012.

Khoi’s solution? Spray a little WD-40 on the Home button, and press it a series of times to get the liquid to work itself into the device. I did it over the weekend and my Home button feels brand new.

Tip: I sprayed it on the tip of my finger so I wouldn’t accidentally drown my iPhone in too much of the chemical.

Speculation: Occasionally I have to remove lint that accumulates in the dock connector opening on the bottom of my iPhone. I wonder if lint and debris are also what cause Home buttons to get less responsive over time by covering up the contact point between the Home button and the surface underneath it.

Warning: Like Khoi, I have no idea of the long-term damage this can do to your iPhone.

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