Pantaohuaes Fingerprint Sensor Flex Cable for Galaxy J4 (2018) SMJ400F/DS J400G/DS (Color: Gold) Restore fingerprint unlock and home button functionality with this direct replacement fingerprint sensor flex cable designed specifically for the Samsung Galaxy J4 (2018). This Pantaohuaes replacement part matches the original connector and layout for the SMJ400F/DS and J400G/DS models, providing a reliable way to a device with a damaged or nonworking fingerprint sensor. Key benefits Restores biometric security: Replaces a faulty fingerprint sensor flex cable so fingerprint unlock and registered fingerprint features work again. Exact fit for compatible models: Designed to match the connector and mounting points of Galaxy J4 (2018) SMJ400F/DS and J400G/DS for straightforward installation. Costeffective : just the damaged flex cable instead of buying a phone or display assembly. Professional appearance: Gold finish matches the original home button/fingerprint area on goldcolored Galaxy J4 devices. Key attributes Functionality: Fingerprint sensor flex cable assembly for biometric recognition and home button connectivity. Compatibility: Samsung Galaxy J4 (2018) model numbers SMJ400F/DS and J400G/DS. Color: Gold (matches goldseries Galaxy J4 devices). Material: Flexible printed circuit cable with integrated fingerprint sensor connector and mounting points. Performance: Restores original fingerprint sensor responsiveness when correctly installed and used with compatible firmware/hardware. What this part solves Replaces a broken or unresponsive fingerprint sensor flex cable caused by physical damage, liquid exposure, or failed connectors. Fixes intermittent fingerprint recognition or a home button that no longer registers presses. Enables refurbishment of used Galaxy J4 units for resale or continued use. Recommended use and installation guidance Intended for technicians or experienced DIYers familiar with smartphone disassembly and reassembly. Power off the phone and remove the battery or disconnect power before attempting replacement. Handle the flex cable and connectors with care; avoid bending or creasing the cable sharply. Test fingerprint functionality before final reassembly to ensure proper connection and operation. If unsure about installation, seek professional services to avoid further damage. Use cases 1. Home : the damaged fingerprint cable after a drop cracked the home button area, restoring fingerprint unlock without replacing the entire front assembly. 2. Refurbishing devices: Techs or refurbishers install this flex cable to fully restore biometric features on used Galaxy J4 phones for resale. 3. Water damage recovery: When the display and other components are intact but the fingerprint sensor connector failed after liquid exposure, replacing the flex cable can functionality. Package contents Pantaohuaes fingerprint sensor flex cable (Color: Gold) compatible with Galaxy J4 (2018) SMJ400F/DS and J400G/DS Compatibility checklist (please confirm before ordering) Samsung Galaxy J4 (2018) Model numbers: SMJ400F/DS and J400G/DS Note This listing is for the fingerprint sensor flex cable only. Other components shown in reference photos (if any) are not included. Confirm your phone model number matches SMJ400F/DS or J400G/DS before to ensure compatibility.