You will need
  • mobile phone;
  • - instructions for your phone model.
Instruction
1
Make sure the keypad is unlocked. In order to unlock, use a specially designated key or combination of keys on the phone. On different models of cell could be in a different key.
2
On phones of the same manufacturer usually have the same or similar menu. Use the manual for your brand of phone. The most common ones will be discussed below.
3
Samsung

Enter the main phone menu, select "Settings", go to "Profiles" (or "sound Profiles"). Opens the following list: "normal", "mute", "car", "meeting", "street", etc., Select "normal" profile, then in "options", choose the "edit" button. In the menu locate "key tone" again, select "modify" and check the box next to the words "mute".
4
LG

Enter the main phone menu, select "Profiles". From the opened list select "General", select "customize". In the option "Volume keys" reduce the volume to zero.
5
Nokia

Enter the main phone menu, select "Settings", select "Alerts" and set the keypad tone volume to zero position.
6
Philips

Enter the main phone menu, select "Settings", select "the volume of the keyboard", set the mode to silent.
7
Exit the menu, check the sound when you press keys.