Fingerprint Sensor Flex Cable for Galaxy J4 (2018) SMJ400F/DS J400G/DS This quality replacement part restores the functionality of your Galaxy J4 fingerprint recognition feature, ensuring smooth and accurate performance. Designed specifically for the SMJ400F/DS and J400G/DS models, it offers precise compatibility and reliable operation. Key Features: 100 percent tested and verified to be in good working condition before Direct replacement for broken, damaged, or nonfunctional fingerprint sensor flex cables Maintains original fingerprint recognition accuracy and response speed Manufactured to match the original size, fit, and connector type Durable construction to withstand regular device use Benefits: Restores important device security functions by enabling fingerprint unlock and authentication Saves the cost of replacing the entire phone by repairing only the faulty component Ensures seamless installation with an exactfit design for Galaxy J4 (2018) models Practical Use Scenarios: 1. Repairing a Galaxy J4 with a fingerprint sensor that no longer detects or responds due to cable damage 2. Replacing the flex cable after accidental drops or impacts that caused the sensor to stop functioning 3. Installing a tested part during professional to provide customers with reliable and longlasting performance Compatibility: Samsung Galaxy J4 (2018) Model numbers: SMJ400F/DS, J400G/DS Function: Fingerprint sensor flex cable responsible for transmitting data between the fingerprint sensor and the phone's mainboard. Material: Durable electronic components designed for consistent connectivity and signal integrity. Performance: Maintains manufacturerlevel recognition accuracy, speed, and reliability for everyday use.