HTC phone TF card cannot be formatted. After deleting the SMS, the mobile phone restarts and the deleted SMS resumes.

Maybe your TF card is protected, so whether you delete your computer or your mobile phone, you can't solve the problem properly. You can use related software to remove the protection of TF card.

There is a virus in your TF card. Brother Cargo, why did you give up treatment? It is better to use the computer to check whether there is a virus to kill.

This is probably the last thing I want to think of: have you formatted it with software? It is best to format it with the software of the computer itself, or it is the best way to plug the mobile phone into the computer to kill virus.