Utstar pn820 User Guide

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Be careful when deleting certificates: select only the certificate you 
intend to delete. Root certificates should only be deleted when you are 
certain you do not need that security on the phone.

 From the Home screen, press the left soft key < 

[Start].

 Select Settings and press O [OK].

 Scroll to Security and press O [OK].

 Select Certificates and press O [OK].

 Choose one of the following: 

 Personal to view the list of personal certificates.

 Root to view the list of root certificates.

 Select a certificate.

 Press [Menu], then Delete.