Fingerprint Sensor Flex Cable for Xiaomi Redmi 3S

The Fingerprint Sensor Flex Cable / Patta in your Xiaomi is the ribbon cable that carries both power and data signals between the fingerprint sensor module and the motherboard. When it is damaged, torn, or has a broken connector, your Xiaomi cannot communicate with the fingerprint sensor — resulting in sensor not detected errors, failed unlocking, or complete fingerprint functionality loss.

If the fingerprint sensor stopped working after a drop or a repair that involved opening the phone — especially near the sensor area — the flex cable is the first component to check. A visibly kinked, torn, or disconnected cable confirms the flex as the fault. If the cable is visually intact, the sensor module may need replacement on your Xiaomi .

Yes. Fingerprint sensor flex cables are model-specific in connector type, cable length, and routing. This listing is designed for Xiaomi only. An incorrect cable will not connect properly and risks damaging the motherboard or sensor connector.

In most cases yes — after any fingerprint sensor repair on Xiaomi it is advisable to delete all stored fingerprints and re-enrol them fresh to ensure accurate recognition with the restored hardware connection. This is a quick process done through your phone's security settings.

Yes — a 7-day replacement warranty covering manufacturing defects is included. An unboxing video is mandatory for all warranty claims. Flex cables showing physical damage from improper installation are not covered under warranty. For more information, check out SAHII's Return Policy.