The Xiaomi 14 Ultra undergoes rigorous inspection and testing procedures before leaving the factory. The entire assembly process of the mobile phone takes place in a dust-free environment, ensuring quality standards. Our current shipping inspection standards align with industry norms. It's worth noting that some cameras exhibit extremely tiny white spots, which are an inevitable occurrence during the production process. However, these spots do not impact the camera's functionality or photo quality. Please feel free to use your device with confidence.