Some Huawei mobile phones Honor 6X Berlin-L22C636B150 and earlier versions have a Bluetooth unlock bypassing vulnerability. If a user has enabled the smart unlock function, an attacker can impersonate the user's Bluetooth device to unlock the user's mobile phone screen.uawei mobile phones have a Bluetooth unlock bypassing vulnerability due to the lack of validation on Bluetooth devices. If a user has enabled the smart unlock function, an attacker can impersonate the user's Bluetooth device to unlock the user's mobile phone screen.