HD Incell LCD Screen Pre-installation precautions 1. Tip 1: Test before installation When testing, do not remove any protective film or label. Please pay attention to static electricity. Before attempting any repair, always use an ESD (electrostatic discharge) wrist strap to ground. This will prevent static electricity from damaging the electronic components within the phone. Always wear goggles and be careful not to cut your fingers on glass shards. 2. Tip 2: Simulation test The screen replacement is very fragile. We strongly recommend testing before installation. Please perform a simulation test, that is, disassemble the phone, (motherboard + LCD or screen), connect the audio cable and the new replacement, power on, and test. If the test is normal, please install it.3. Tip 3: Do not bend the cable excessively Please make sure that the LCD cable is not excessively bent. Bending more than 90 degrees will cause a black screen. About the product 1. Replacement LCD + touchscreen digitizer assembly for iPhone 13 Pro Max (incell material). 2. Replace damaged or unworking components. 3. Make your device look like new again. 4. Fit and work properly. 5. Each item has been checked and in good condition before shipping.