Contents: 1x Main Flex Cable Compatibility: Mainboard Ribbon Main Flex Cable is designed for Samsung Galaxy A51 5G A516U A516B A516W (NOT for A51 4G A515). Please check the Model Number of your device before purchasing this Item. Check your phone model in the settings: Settings -About Phone - Model name/Model number. Warm Tips: This is to replace the damaged old Mainboard Ribbon Main Flex Cable .NO instructions included. We recommend that it be installed by professional technicians.