1. Replacement sensor microphone flex cable for Xiaomi Mi Mix 4 2. Replace your broken or unusable item with a new one 3. Make your device look more refreshing than ever 4. Completely fit and work 5. Each item has been checked and in good condition before shipping 6. Professional installation is highly recommended. We will not be responsible for any damages to your cellphone/mobile phone that you may cause during the changing of replacement parts