I found and tested this trick for speeding up our S60 handset and found it 100 % working!
1.) Change your phones’ date to the 01.05.2005
2.) Go to the calendar
3.) Now we need to create two new to-do’s (Options > New entry > To-do)
4.) These two to-do’s need to have the following information:
To-do:
• Subject: Speed
• Due date: 04.08.2005
• Priority: High
To-do:
• Subject: Qoukie
• Due date: 04.08.2005
• Priority: Low
5.) Confirm the both to-do notes with “Done”, but don’t close the calendar application.
6.) Choose: Options > To-do view
7.) Mark “Speed” as done, after that mark “Qoukie” as done.
8.) Now you can close the calendar.
9.) Change the phones’ date back to the actual day.
10.) Enjoy your faster device!
Please revert with your experiences.