Can fix USB port after over current

My Macbook pro' USB is not working properly after attach an external device:

- Normal mode: 2 usb ports not work.

- I try: disconnect battery, power adapter, attach usb keyboard some times in first USB port (near by minidisplay port) and left it after 10 mins. Then, restart in Win 7, attach a usb mouse in that port, the mouse works properly but usb keyboard, usb hub, phone not work.

- Second usb port is dead.

How can i fix it?

model: Apple MacBook Pro "Core i5" 2.5 13" Mid-2012