Home Button Flex Cable for Xiaomi Mi 3

The Home Button Flex Cable / Patta in your Xiaomi is the ribbon cable that carries the electrical signals for Home Button press detection, fingerprint sensor data, and associated functions between the Home Button assembly and the motherboard. A torn, kinked, or damaged flex cable breaks this signal pathway — causing the Home Button to become unresponsive or the fingerprint sensor to fail even when the button cap and sensor are physically undamaged on your Xiaomi .

If the Home Button stopped working after a drop or after a previous repair that involved opening the phone — particularly one that required routing or repositioning the flex cable — the flex is the first component to inspect. Visible kinking or tearing of the cable confirms the fault. If the cable appears intact, the Home Button assembly itself may need replacement on your Xiaomi .

Yes. The connector type, cable dimensions, and routing path are model-specific. This listing is designed for Xiaomi only. A flex cable from a different model will not connect correctly and may damage the motherboard connector.

Yes — if the fingerprint failure is caused by a broken signal path through the flex cable. After replacement, delete all stored fingerprints and re-enrol them fresh through Settings on your Xiaomi for best results.

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.