Cao Cao lent a very practical loan software. This software provides unexpected loan services for friends. I believe it will bring surprises to friends who like loans. Recently, a friend reported that the mobile phone could not be verified. Let me give you an analysis of the reasons why Cao Cao's IOUs cannot be verified, hoping to help you.

What happened when Cao Cao borrowed his mobile phone and couldn't verify it?

1. Check whether the mobile phone network settings are normal and whether Cao Cao Loan can be used normally.

2. Check whether Cao Cao Loan needs to be updated, and it should work normally after being updated to the latest version.

3. Your mobile phone number may not have real-name authentication, so the mobile phone cannot be verified.

4. If it is software or unknown problem, I suggest you uninstall and reinstall it directly. It is better to cut the gordian knot than to worry about solving the problem.