Hard reset samsung wave 8500, secret code

*#1234# - Shows Firmware version.
*#197328640# - Internal Settings
*2767*3855# - Hard Reset

Please be careful while using these codes. Changing values without knowing what they are might make your phone unstable.

*#197328640# - Secret Menu.
*#0228# - Battery Info

*#0*# - LCD test

*#1111# S/W Version
*#1234# Firmware Version
*#2222# H/W Version 

*#197328640#

This code can be used to enter into Service mode. You can run various tests and change settings in the service mode.

For increasing music volume:

Type *#197328640#
Click the button 5 ( Audio )
Click the button 2 ( AP, Volume Config)
Click on the button 2 (EAR Config )
Click the button 1 (volume PM) - to increase the volume of music files or the 5 key (FM Radio volume ) - Radio
We can see the 7 lines (0-6 ) , we can increase the value of
all lines (these are the lines that define the level at each
support ), you can change any of them or increase only
last value of 58dB to 75dB and 100db max .

To enter double digit, for 0 line press 0 on the number pad it will say write on the top right hand corner on the screen. just tap on the bar 3 to 4 times quickly below the number key pad and then another keypad should open. enter desired number and press ok twice...done.

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*#7465625#

This code can be used to check the status of Sim Lock and Network Lock.