The effects of this operation include: the multimedia message content cannot be displayed normally, the multimedia message content is mistaken for spam, and the multimedia message content contains malware or viruses.

1, MMS content cannot be displayed normally: MMS without theme will be ignored or misunderstood because there is no clear theme. If the receiver does not have the right to receive MMS, or the content of MMS does not match the interests or needs of the receiver, the content of MMS cannot be displayed normally or ignored.

2. The content of MMS is mistaken for spam: As the theme-free MMS has no clear theme, it will be mistaken for spam or advertisement. If the receiver is not familiar with the content or source of MMS, it will be regarded as spam, ignored or deleted.

3. MMS content contains malware or viruses: Although most MMS messages without themes are safe, some MMS messages still contain malware or viruses. If the receiver does not download and open these MMS carefully, it will lead to equipment infection or data leakage.