Galaxy s5 Charging Circuit?

Dear All !!! I Bought Samsung Galaxy s5 from USA (Samsung Galaxy GS900V). Now its not charging. I tried my charger with another device and its working fine. Tried my battery on other phone, its working fine as well. I cant claim warranty now and I took it to a local guy, he tells me that my phone's charging IC or port is gone faulty. Can anybody help me out? One more question : Can I buy a wireless charger which samsung provides for approx 30 US$ and charge it? Does that wireless charger use any of my cable charger circuit?