Fixes the problem:

Power button not working or unresponsive

Side-mounted fingerprint sensor not functioning

Button feels stuck or mushy

Phone won't turn on due to button failure

Damaged or torn flex cable inside the phone

Features & Specifications:

Part Type: Side Key / Power Button Flex Cable with Fingerprint Sensor

Compatible Models:

Samsung Galaxy S21 (SM-G991)

Samsung Galaxy S21 Plus (SM-G996)

Condition: 100% Brand New, High Quality

Package Includes: 1x Power Button Flex Cable with integrated fingerprint sensor

Material: Flexible PCB with reinforced button contact areas

Important Note: The fingerprint sensor is integrated into the power button on S21 series. After replacement, fingerprint function may require calibration or may be lost depending on part quality.