You arranged it.
Operating Steps: In the menu key-Application-Program Management-Options-Settings, select "All" for software installation and "Close" for online certificate inspection).
How to solve the problem of certificate error during installation?
A: In order to successfully install all the software applicable to S60 3rd edition models, you need to select "Register programs only/all" in Tools-Program Management and "Software Installation" in Options = = = Settings. It is recommended to select "All" for online certificate inspection: you can select "Must Pass Inspection/Open".
Why can't I install any software and always prompt "Installation security error, can't install!"
Answer: Please follow the steps: Tools-Program Management-Options-Settings-Install Software: All.