Try a Factory Restore ...Menu-->Settings-->Restore Factory settings-->Settings only ...
Enter 12345 (Default security code unless changed by you) when prompted ..
Check if you have the latest Firmware on your Phone. You may do that thru' Nokia Suite . If any update is available do that, else you may re-install (refer the attachment) the existing firmware and see if the problem gets resolved.
If no change the you need to get the Firmware flashed at Nokia Care
18-04-2013 14:30 - edited 18-04-2013 14:34
Get the Firmware flashed at Nokia Care . That should surely get back the Themes and any other stuff that you might have lost
You can Download it using Nokia suite.
My nokia c2-00 call log missed calls are not deleating how to delete it?
My c2-00 cell got missed call but when i am trying to delete it it is showing invalid selection.
03-06-2013 10:34 - edited 03-06-2013 10:34
Where is nokia care to flash it?
In which country are you located? The easiest way is to call your local Nokia support team and ask them for the procedure: Some have local offices, some require you to send your phone to them. In any case, reading your description of issues, I recommend a refurbish with Nokia Care, as well.