My iPhone 5 won't charge. I've tried 3 different chargers, and looked for lint, but nothing. Please help.

See if this applies: iPhone 5 Battery Replacement Program - Apple Support

I would try with different chargers. DOnt use the cheap wallgreen chargers becuase the are inconisitant. If your posrt still doesnt work you might need to take it to an iPhone repair center and they can swap out the dock and put in a new one for you.

There is no dock swap... They will need to replace the whole phone...

Really? I'm having that problem too. Why is it necessary to replace the whole phone?

Because the iPhone does not have serviceable parts. If the device is malfunctioning, Apple replaces the device.