How to restore certificates on Nokia Asha 501?

my nokia asha 501 certificate delete need now 

How to restore certificates on Nokia Asha 501

Sir my nokia asha501all certificate delete plz help


My certificate is deleted so o can't install applications please help me with some another certificate please

Answer this question...My nokia aasha certificate deleted how i install me.

Answer this question...My mobile certificates has experid

Certificates are deleted bymistake so,whatsapp,ovi stor ucbrowser don't work please send me link reinstall rertificate

Whatsapp certificate delete.please send nokia asha 501.please please please...

Answer this question...Whatsapp not work secure problem

Pls send me all asha 502 certificates...

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