Gionee India — My mobile gionee s7 rear back camera not working properly

Address:	Rajsamand, Rajasthan, 313324
Website:	gionee

I purchased gionee s7 last year. Before three months i found mobile rear back camera not working properly. I go to your service Centre near indraprasth complex udaipur. Service Centre boy told me to that dust come in front of camera and need to clean it. He also suggested to replace back cover due to broken condition. He changed back cover with charges.
But i found that rear back camera not working properly still now. He suggest to replace it. He changed camera immediately against warranty.
But i still found that rear back camera not working properly.
Complain no. [protected]
My mobile number [protected]