大家好，下面小编给大家分享一下。很多人还不知道华为mate40门禁卡是写入手机nfc的。下面详细解释一下。现在让我们来看看！

1.打开手机的NFC开关，访问网络和连接。更多连接方式，找到NFC，把开关切换到on。

2.找到小米钱包图标，点击进入小米钱包，可以找到钥匙卡的功能图标。

3.进去后可以看到手机是门卡。点击钥匙卡栏。

4.将门禁卡放在手机的NFC感应区域，等待检测。检测期间不能移动门禁卡。目前只能模拟13.56MHZ频率的未加密门禁卡。

5.进行身份认证。第一次需要上传证书，进行证书认证和密码认证。按照提示操作，然后点按“立即认证”。

6.等待NCF卡的模拟数据。模拟成功后，设置备注访问卡的名称，选择个性卡noodle，多张卡使用时容易识别。单击完成。

7.最后，门禁卡完成。使用时，开启门禁卡功能，将手机NFC区域放在读卡器附近，作为门禁卡使用。

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以上解释了华为mate40门禁卡写入手机nfc。这篇文章已经分享到这里了。希望能帮到大家。如果信息有误，请联系边肖进行更正。