Gmail的备份代码无法用于访问账户。
好的，我在 Gmail 上有一个工作账户。之前我曾经历过被锁定的情况（不断循环的“您输入的密码是正确的，但我们不确定是您，请稍后再试”），所以我通过 Google Authenticator 创建了双重身份验证，并设置了备用代码，以为这样就能避免被要求在其他设备上登录或输入短信验证码（我不带那部手机）。
有一天阳光明媚，我决定将标准的 iOS 邮件应用程序添加到这个账户中，结果连接一个小时后，我收到一条消息，称由于账户出现异常活动，我需要输入通过短信发送的验证码。
好吧，我没有那部手机，所以我尝试使用 Authenticator 登录，但没有成功：“我们不确定是您，请输入发送到短信的验证码。”好吧，我找出备用代码，输入后仍然收到“我们不确定是您”的消息。
如果设置 Authenticator 或备用代码没有任何作用，那这样做的意义何在？
如果有谷歌的工作人员在看这个，请不要联系我提供帮助。请直接改变这个愚蠢的系统。
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Ok, I have a work account on Gmail. Having the experience of being locked out of Gmail previously (endless loop of "You are entering the correct password but we're not sure that it is you, try again later"), I created a 2fa via Google Authenticator and set up Backup Codes and thought I'm safe from them asking me to sign in on another device or enter sms code (I don't carry that phone with me).<p>So, one sunny day I decided to add standard iOS mail app to this account, and lo, an hour after connection I get a message, that due to strange activity on my account, I need to enter code sent via sms.<p>Ok, I don't have that phone with me, so I try to log in with Authenticator, and no, no good: 'we are not sure that it is you, enter code sent to sms'. Ok, I dig backup codes, enter them, and still get 'we are not sure what it is you' message.<p>What's even the point of allowing to set up Authenticator or Backup Codes if they don't do anything?<p>If there are some people from Google reading this, please, don't reach out to me offering to help. Just change this dumb system.