Apple's mobile app store always needs to verify the previous mobile phone number when updating the software. I also know the password, but there is no verification code?

IPhone always needs a verification code to download software. There are two solutions:

Open the settings in Apple's mobile phone, click on the account, find "iTunes Store and App Store", and click on your Apple ID to view the Apple ID. Click Finish in the upper right corner. At this time, return to the APP Store to download again, and the app will pop up a window that needs to be verified. However, at this time, you can receive a short message from the system and enter the verification code to solve the verification problem.

Alternatively, Apple phones can download software directly from third-party mobile assistants without verification or account.