The Flex Cable for Samsung Galaxy S21 FE Fingerprint Repairs is a direct-replacement flex cable designed to restore a non-responsive fingerprint sensor on the Galaxy S21 FE 5G (SM-G990B).
Use case: when the in-display fingerprint stops registering or fails during unlock attempts, this cable replaces a damaged connector or worn flex, enabling the sensor to reconnect to the mainboard. Intended for device owners and repair technicians looking to fix fingerprint-specific faults without replacing the whole display.
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Compatibility: Samsung Galaxy S21 FE 5G SM-G990B (fingerprint sensor flex)
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Material: flexible PCB with integrated connector and contact pads
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Color: black flex with gold contact points
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Includes: flex cable pre-assembled for immediate installation
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Installation: requires opening the display; professional or experienced DIY recommended
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Benefit: targets fingerprint-specific failures without full-screen replacement
Light specifications: precise pin layout, OEM-style connector size for SM-G990B.
Fit statement: Designed to fit the Samsung Galaxy S21 FE 5G SM-G990B model only.
