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Shaun WingrinFlag for South Africa

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iPhone 4, unknown device driver when USB inserted it.

Say,

I have inserted an iPhone 4 into a laptop which is running Windows 7 32-Bit, it would charge my phone previously when plugged in the laptop. Suddenly - comes an error comes up "unrecognised USB device appears and the iPhone no longer charges in the process.

I have rebooted phone & laptop twice already & this has still not resolved the problem.

How do i fix this & what solution do you recommend i should go with to overcome this problem?

TX
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It didn't find a driver ... laptop not more than 2 or 3 years I would estimate. The usb works fine with a mouse....