Tips for Safe Installation: Tip 1: Test Before Installation Before installing, ensure the screen is functioning properly. Do not remove any protective film or tags during testing. Ground yourself using an ESD (electrostatic discharge) strap to prevent damage from static electricity. Always wear eye protection and handle the glass cautiously to avoid cuts from splinters. Tip 2: Simulated Testing Since screen replacements are fragile, it is highly recommended to simulate a test before installation. Disconnect the current screen and connect the new LCD and digitizer assembly to the motherboard using the audio cable. Power on the device to check if the screen displays correctly. If it shows without issues, you can proceed with the installation. If there are problems (e.g., no display), contact us immediately and do not attempt to install the screen. Tip 3: Avoid Over-Bending the Cable Handle the LCD cable carefully; avoid bending it more than 90 degrees, as excessive bending can cause a black display. About the Product: This is an LCD display and touch screen digitizer assembly replacement part for iPhone 14. Perfect for replacing old, broken, cracked, or damaged screens. Restores your device's appearance and functionality. Designed for a perfect fit and complete operational capability. Each unit is thoroughly tested to ensure quality before shipping. We highly recommend professional installation, as we cannot accept responsibility for any issues that arise after the screen is installed. Follow these instructions carefully to ensure a successful installation and restore your iPhone 14 to its optimal performance!