Certificate error contact application supplier

Do what it says and contact the application supplier.

Navigate tot App. Mngr. > Options > Certificate Installation> Select ALL.
If it shows Certificate Expired, just change your system date back a year of two. That should make it work.

Cheers.

i cant instal my themes...it always says conect with application supplier

Certificate error contact the application suplier

To get past this error you must (a) change the date of your mobile to a previous date and also (b) in the settings you must set it to Not Check the security certificate.

chage the date to past for months and try.if the problem exists you have to buy new Rotateme copy.....else you have to hack your phone which is dangerous

If you try to install a theme and see the above error message "Certificate Error. Contact the application supplier" You are trying to install an application that is not Symbian signed

The solution is easy. Simply switch the setting in the Application Manager from "Signed only" to accept all - "Software Installation: All"

You can find the App. Manager Here:
Menu > tools > application manager > options > settings > ......

If I was helpful, Kindly do Rate!
Regards,
Waqar.

If you own Nokia E-series mobile phone (E60, E61, E70),
you may want to do following in order to allow phone
to install SmartMovie:

1) Open Application Manager
2) Choose Options, then Settings
3) Switch Software installation to *All* (not Certified only)

This will allow you to install non-certified applications.

Send me the theme File i can get it signed for u.or visit this link http://www.mobilesmania.com/forum/index.php?&showtopic=49264 u will get an idea on how to sign files.

ON UR N95 GO TO MENU-TOOLS-SETTINGS-APPLICATIONS--APP.MANAGER. TURN (ONLINE CERTIFICATE CHECK) OFF.........HOPE THIS SORTS UR PROBLEM OUT!