Fingerprint Reader Flex Cable for XiaoMi Redmi Note 4X (Champagne Gold). This flex cable can be used to replace a faulty fingerprint reader, which can cause device malfunction. It includes adhesive for easier repair. Disassembling the front screen is not easy, so caution is required. For the installation of the fingerprint reader, professional installation of this unit is recommended. This flex cable is compatible with XiaoMi Redmi Note 4X (Champagne Gold).