Replacement proximity and light sensor flex ribbon for SAMSUNGsung Galaxy J4 (SM-J400F / J400G / J400M)

Restores proximity sensor for screen auto-off during calls

Restores ambient light sensor for automatic brightness adjustment

High-quality flex cable for reliable sensor signal transmission

Precision contacts ensure secure connection to motherboard

Solves issues like screen not turning off during calls or auto-brightness not working

Direct replacement for damaged or non-functioning sensor ribbons

Professional installation recommended