What should I do if I can't receive the verification code for Apple ID dual authentication?

The solution of not obtaining iCloud double authentication verification code after losing the device.

After losing your iPhone or iPad, you can log in to iCloud to view, locate and lock the device. However, if dual authentication is set, you must click Allow on the device and get the verification code when logging in to iCloud.

This design seems to be an infinite loop. Since the device has been lost, how can I click "Allow" on the device to view the verification code? In order to solve this problem, nip in the bud, the following will introduce the treatment methods in different situations.

1. If you add other trusted devices or trusted phone numbers, you can get the verification code from the trusted devices. If it is an iPhone, iPad or iPod touch device, open Settings > [Your Name] > Password and Security, and then select Get Verification Code.

If the trusted device is a Mac, go to the Apple menu >; System preferences > iCloud, click account details, click get verification code for lost devices offline, and click security > get verification code for lost devices online.

In addition, if you have logged into iCloud on your computer browser and selected "Trust", you can log in directly without a verification code.

Note: Trusted devices are devices that have been logged in with two-factor authentication, which can be iPhone, iPad or iPod touch with iOS 9 or above, or Mac with OS X El Capitan or above. If Apple confirms that this device belongs to you, when you log on to other devices or browsers, this trusted device will display the verification code provided by Apple to verify your identity.

2. If you have never added a trusted device, please contact your operator immediately and reissue the SIM card. After confirming that the SIM card can receive short messages, log in to iCloud with a password. After sending the verification code, select "Did you receive the verification code?" -Send me a message ",and then log in with the verification code in the message.

If the bound phone number is not lost, you don't need to reissue it, just accept the verification code directly.

If the phone number is not available, you can add a new phone number to the device that has logged into the Apple ID to collect the verification code. Open settings > [your name] > password and security, click edit-add trusted phone number next to trusted phone number, and then follow the steps on the screen.

3. You can't use any device or phone number to get the verification code. You need to contact Apple to confirm your identity, and then Apple will help you solve the account problem. Or you can select "More Options" in the verification code window, and then click "Can't use any devices or phone numbers?" Click the "Continue" button under the option and follow the prompts.