Themes on my nokia 6600 won't open

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 > ......

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Regards,
Waqar.

Hi buddy,
Before installing the app check wheather it is currupted or not or its a .sis file or not

in menu go to themes option & apply themes &

http://gallery.mobile9.com/c/nokia-6600-themes/1/ for free themes download

Try this site:

mobile9.com

Your phone have a minor problem. You can try to solve to fomat it.Your formt number is *#7370# or*#7303#.

deactivate msg alert tone off. urs suresh9848417656

.sis are for most nokia phones as well, if the .jar files work you can try those but you should update your firmware.

maybe the themes did not fit your phone.try other themes or try to format you MC then install the themes back or try install fileman and by using this you can check anything that you install..hope this help..

if u want preinstalled themes,ringtones,applications u need to reinstall handset software frm sony care center...and if u want urs themes,rigtones.application,,,sorry no way out.....u need to install it again....

try to delete the application after going to the main menu-tools-manager-from there you can delete the applications..or if the applications is in memory card than you can delete the application through the memory card reader