使用身份验证器应用进行两步验证
您可以使用身份验证器应用生成您的验证码，而不必每次在登录您的卖家账户时使用手机接收通过短信或语音电话发送的验证码。身份验证器应用不需要电话服务或互联网连接即可工作，但无论您选择什么设备或 PC，都必须下载该应用。
要下载身份验证器应用，请前往设备的应用商店或浏览互联网：
- 如果您使用的是 iOS 或 Android 设备，您可以从相应的应用商店下载 Microsoft Authenticator 或 Google Authenticator。如果您希望使用其它身份验证器应用，请确保其支持 TOTP OATH（开放式身份验证计划采用的基于时间的一次性密码算法）。
- 如果您使用的是 Windows PC、平板电脑或设备，请在 Windows 应用商店中搜索“身份验证器应用”。
- 您可以安装使用 USB 安全密钥的程序。有关更多信息，请参阅使用 USB 安全密钥进行两步验证。
- 您也可以从网上下载基于浏览器的扩展程序或插件。
您可以选择通过以下两种方法之一将您的卖家账户添加到此应用。
同一设备登录
如果您在不带相机的设备上安装身份验证器应用，请使用此方法。或者，如果您无法使用设备扫描二维码（例如：在电脑上）。
1、登录卖家平台，前往【设置】，然后选择【登录设置】。
2、点击【高级安全设置】旁边的【编辑】按钮，然后点击【开始】按钮。
3、页面提示您选择接收验证码的方式时，请选中【身份验证器应用】。
4、点击【无法扫描条形码？】链接并复制此处的信息。
5、打开您的身份验证器应用，添加新账户，并粘贴您复制的信息。此操作会将此应用关联到您的卖家账户。
6、此应用将自动生成随机验证码，您需要在注册屏幕的二维码下方重新输入此代码。点击【验证并继续】。
7、此应用将持续提供新的验证码。
不同设备登录
如果安装身份验证器应用的设备有相机，您可以使用此方法。
1、使用与装有身份验证器应用的设备不同的电脑或设备登录卖家平台。转至【设置】，然后选择【登录设置】。
2、点击高级安全设置旁边的【编辑】按钮，然后点击【开始】按钮。
3、页面提示您选择接收验证码的方式时，请选中【身份验证器应用】。此时屏幕上将显示一个二维码。
4、在其他设备上打开身份验证器应用，并添加新账户。设备的相机将激活。使用它扫描二维码。
5、此应用将自动生成随机验证码，您需要在注册屏幕的二维码下方重新输入此代码。点击【验证并继续】。
6、此应用将持续提供新的验证码。
亚马逊官网原文详情：
Use an authenticator app for Two-Step Verification
Instead of receiving a code on your phone via text or voice call each time you sign in to your seller account, you can use an authenticator app to generate your authentication code. Authenticator apps do not require phone service or an Internet connection to work, but must be downloaded to whatever device or PC you choose.
To download an authenticator app, go to the app store for your device or browse the Internet:
- If you're using an iOS or Android device, you can download Microsoft Authenticator or Google Authenticator from your respective app store. If you prefer to use a different authenticator app, make sure that it supports TOTP-OATH (Time-based One-time Password Algorithm adopted by the Initiative for Open Authentication).
- If you're using a Windows PC, tablet, or device, search for "authenticator app" in the Windows Store.
- You can install programs that work with a USB security key. For more information, see Use a USB security key for Two-Step Verification.
- You can also download browser-based extensions or add-ons from the Internet.
Note: Authenticator apps don't have access to your Seller Central password or account information.
You can choose one of two methods to add your seller account to the app.
Same-device sign-up
Use this method if you are installing your authenticator app on a device that doesn't have a camera. Or if you're unable to use your device to scan the QR code (for example, on a PC).
1、Log in to Seller Central and go to Settings, and then select Login Settings.
2、Click the Edit button next to Advanced Security Settings, and then click the Get Started button.
3、Check Authenticator App when prompted to choose how to receive codes.
4、Click on the Can't scan the bar code? link and copy the information there.
5、Open your authenticator app, add a new account, and paste the information you copied. This links your app to your seller account.
6、The app will automatically generate a random code that you must re-enter on the enrollment screen under the QR code. Click Verify code and continue.
7、The app will now provide new codes on a continuous basis.
Two-device sign-up
Use this method if the device you installed your authenticator app on has a camera.
1、Log in to Seller Central using a computer or device that is different from the device where you installed your authenticator app. Go to Settings and select Login Settings.
2、Click the Edit button next to Advanced Security Settings, and then click the Get Started button.
3、Check Authenticator App when prompted to choose how to receive codes. A QR code will display on the screen.
4、Open the authenticator app on your other device and add a new account. The device's camera will activate. Use it to scan the QR code.
5、The app will automatically generate a random code that you must re-enter on the enrollment screen under the QR code. Click Verify code and continue.
6、The app will now provide new codes on a continuous basis.
文章来源：亚马逊官方网站
