Screen replacement is a very fragile product. We strongly suggest testing before installation. Please simulate the test, which means disconnect the mobile phone, (motherboard + LCD or monitor) audio cable connected and replace new, power on, finish the test. If tested well, please install it. If you can't show it, please contact us at the first time. And please do not install it firmly on the phone. We will not be responsible once the monitor is installed. Tips 3:Don't over-bend the cable Please make sure not to over-bend the LCD cable. Bending over 90 degrees may cause black display. About Product 1. Replacement LCD Display Replace your old, broken, cracked and damaged 3. Make your device look fresher than ever 4. Perfect fit for work 5. Each product has been inspected and in good condition before shipment 6. Professional installation is highly recommended. We will not be responsible once you install the screen after receiving your order, we will arrange expedited shipping for you immediately, please pay attention to the delivery status. After receiving the product, if you have any questions or product quality problems, please contact us. We will provide you with the best after-sales service.