How do I find out if my iPhone has a virus

J_brasi93 Said:

"How do I find out if my iPhone has a virus"

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Please Calarify your Post:

The ain't no virus on your iPhone. What makes you suspect there is one? If a message, it is a scam.

Restore your iPhone:

If you are so concerned, then restore from a backup or reset your iPhone to factory settings. Important: Back Up First: Be sure create a back up your iPhone prior to performing an update, that way you have something to restore your iPhone from, should anything go wrong afterwards. 

A. Restore from a Backup:

Did your ever back up your iPhone with these installed? If so, back up you could back up your iPhone, and then restore it from the backup.

or...

B. Resetting to Factory Settings:

Go here: What to do Before you Sell, Give Away, or Trade in your iPhone, iPad, or iPod touch - Apple Support

When I want to open my iCloud to see the space my iPhone doesn’t show anything ,and it seem like I must upgrade my iOS trust certificate for my iPhone 6s, how do I change it as I’m using iPhone 6s. Please help

It doesn't.