Question about Nokia N81

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I accidentally deleted the certificate

Howdy. i accidentally deleted the "cf" in my memory card. i downloaded some cellphone themes in the internet and when im trying to install it, it says that "certificate error: please contact application supplier". so i cannot install it.until now, my N81 8GB doesnt have a theme except the default nokia themes.
what am i gonna do? please help me thanks! more power.

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  • kanand Dec 05, 2008

    restore factory setting i forgot the password how to restore the mobile

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  • Nokia Master
  • 511 Answers

Try to download themes fro your mobile from zedge.net or ownskin.com you can get all new themes try to install directly or through p.c via usb or bluetooth

Posted on Jan 18, 2010

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  • Master
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In the application manager Select Options>Settings>Software installation>All and Online certificate check>Off. If again certificate error is shown then either the file is corrupted or is not supported by your phone..

Posted on Jul 01, 2009

  • TINU ALBIN ALEX
    TINU ALBIN ALEX Sep 15, 2009

    The certificate error shows that the file you installed doesn't have a valid certificate or it is expired.Such things cannot be installed.It has nothing to do with the "cf".Please reinstall your phone's software or update your phone's firmware so that you can retrieve the "cf".

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Posted on Jan 02, 2017

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In Software Installation make it ALL. This change is important, otherwise you will get an Error message Certificate Error. Contact the application supplier while installing most freeware

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