1. off your mobile
2. hold first n last home key (under screen) and power key
3. click on emergency call
4. type *#*#7378423#*#*
5. click on customize setting
6. reset custumize
2. hold first n last home key (under screen) and power key
3. click on emergency call
4. type *#*#7378423#*#*
5. click on customize setting
6. reset custumize
7. phone will be restart
