To check if your smartphone has viruses, you can take the following steps:
1. Install a reputable antivirus or mobile security app from a trusted source.
2. Run a full system scan with the antivirus app to detect any malware or viruses.
3. Be cautious of any unusual behavior on your phone, such as unexpected pop-ups, excessive battery drain, or sluggish performance.
4. Avoid downloading apps from untrusted sources and keep your device's operating system and apps updated.
5. Regularly review the permissions and privacy settings of installed apps to ensure they are appropriate.
If you suspect a virus, it's advisable to consult a professional or contact your device manufacturer's support.