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Getting rid of 'Installation security error'

01 February 2006 · by Steve Litchfield
Applications, Troubleshooting, Upgrading Series 60, S60 3rd Edition
Q. Having bought a new Nokia smartphone, I'm having problems installing most of the programs I've downloaded. The error message is 'Installation security error, unable to install'. I spoke to Nokia and they say there is no security feature to prevent software installation.

A. The Nokia support team are mistaken, the newer Series 60 smartphones all have a security system in place for applications. By default it's set to just allow the installation of commercial programs that have been 'Symbian signed'. What you need to do is go to 'Tools | Manager | Options | Settings' and set 'Software installation' to 'On'.

While you're there, it's well worth setting 'Online certif. check' to 'Off', if it isn't already, as this may also catch you out when installing software from Nokia in the future. Now try installing the third party programs again and all should be well!