iPhone doesn't charge or sync, but it can recognize usb cable
My iPhone worked properly for two years. One day I tried to charge it with wall charger, but nothing happened. I tried to sync, also nothing. But when the device is off and I plug in the wall charger (or usb cable from pc), it boots. Cables are ok, wall charger too (it works with another iPhone). I also tried clean dock connector, it didn't help. What's wrong?
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