We are wholeheartedly dedicated to solving the problem, we have checked the camera and is all in well, we won't accept the accusation that you mentioned. First, all of our products are strictly tested before shipment. Secondly, it 100% matches the parameters, please double-check what you purchase and read the detailed description carefully if you are not satisfied with our product. Third, there is no proof you provided to prove the defect. Fourth: We promptly responded to you ASAP even on Chinese official holidays, unlike what you expounded as no response. We offer the following solutions for you: 1. Take a picture or video to prove the defect, then we will go with the warranty policy. 2. Contact our engineer elaborately and follow instructions. Notice: WE WILL NOT SEND ANOTHER BRAND NEW ONE FOR FREE WITHOUT ANY PROOF! We will go with the policy, solve it, or return it whatever you want if it is our problem. We sincerely apologize for your bad purchase experience.