The verification code of ipad is sent to another device. How can I check it?

At present, Apple's devices must have any two of "password", "dynamic password" and "backup password" to pass the two-step verification.

For example, if the mobile phone is lost, you must know the backup password in addition to the account password, otherwise you can't unlock the account even if you find Apple, and you will have to bear the consequences if you lose two at the same time. At present, after the two-step verification is started, you need to log in to Apple ID on the webpage to modify the account information, and log in to iCloud on the webpage.

After sending the verification code of an ipad to another device, you can only view it on the device receiving the verification code, usually by SMS, and some can also be sent to the registered email address, and click to view it directly.