Samsung Mobile Secrete Codes

NOTE:
works in some handsets

1] #*7785# reset wake up

2] *#9999# software version

3] #*3888# bluetooth text mode

4] #*7200# tone generator mute

5] #*3837# phone hangs on white screen

6] #*3849# restart phone

7] #*7337# reset wap setting

8] *7666# white screen