Zte OX253P User Manual page 259

Appendix E Importing Certificates
Installing a Stand-Alone Certificate File in Opera
Rather than browsing to a web configurator and installing a public key certificate
when prompted, you can install a stand-alone certificate file if one has been issued
to you.
Open Opera and click TOOLS > Preferences.
1
Figure 165 Opera 9: Tools Menu
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OX253P User's Guide