Mobile phone security

Hello everyone,

 

I tried to install norton 360 multi-device on my mobile phone.

 

When I first tried to install norton it wouldn't accept my key code number, then I found

 

that I have to include this device on my norton account but I couldn't do this either

 

because my mobile constantly freezes in the middle of this application.

 

What should I do now? Could anyone help me?

 

Thank you

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