These Nokia codes will work on most Nokia Phones
(1) *3370# Activate Enhanced Full Rate Codec (EFR) – Your phone uses the best sound quality but talk time is reduced my approx. 5%
(2) #3370# Deactivate Enhanced Full Rate Codec (EFR) OR *3370#
(3) *#4720# Activate Half Rate Codec – Your phone uses a lower quality sound but you should gain approx 30% more Talk Time.
(4) *#4720# Deactivate Half Rate Codec.
(5) *#0000# Displays your phones software version, 1st Line : Software Version, 2nd Line : Software Release Date, 3rd Line : Compression Type.
(6) *#9999# Phones software version if *#0000# does not work.
EXCEL KEYBOARD SHORT KEYS
Unhides any hidden rows within the selection.
Unhides any hidden columns within the selection.
Applies the outline border to the selected cells.
Removes the outline border from the selected cells.
1. Open a blank Notepad file
2. Write .LOG as the first line of the file, followed by a enter. Save the file and close it.
3. Double-click the file to open it and notice that Notepad appends the current date and time to the end of the file and places the cursor on the line after.
4. Type your notes and then save and close the file.
After that open the file and see the changes.
by this trick u can also use ur notebook as a personal diary.