微信刷脸支付initWxpayface接口返回Unable to get device SN，摄像头驱动已装
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- Get the device id: Mini Program/Development/Extended/API/New API for Multiterminal Framework/Get the device Id
- SDK Requirement: Mini Program/Development/Extended/API/New API for Multiterminal Framework/Get the device Id
- step 1, Go to project.miniapp.json Configure plugin: Mini Program/Development/Extended/API/New API for Multiterminal Framework/Get the device Id
- step 2, Go to project.miniapp.json Configure iOS Privacy Issue Information Access Permission: Mini Program/Development/Extended/API/New API for Multiterminal Framework/Get the device Id
- step 3, Load Plugins: Mini Program/Development/Extended/API/New API for Multiterminal Framework/Get the device Id
您好，这个是无法获取设备SN。可以前往https://pay.weixin.qq.com/wiki/doc/wxfacepay/open/open-design-requirement.html#%E5%BA%8F%E5%88%97%E5%8F%B7%E7%94%9F%E6%88%90%E8%A7%84%E5%88%99 进行了解
然后您想要进行人脸识别还需要调通接口，可以在官网上面找到对应的demo进行调试，主要还需要下载对应的SDK版本进行测试