all samsung code old
*7465625*638*00000000*00000000#
NEXT ENTER
#7465625*638*00000000#
AND THEN *#7465625# to check the locks....all locks are inactive...these are all the locks...
network lock - inactive
subset lock - inactive
sp lock - inactive
cp lock - inactive
sim lock - inactive
activa lock - inactive
phone lock - inactive
auto network - inactive
auto subset lock - inactive
auto sp lock - inactive
auto cp lock - inactive
auto sim lock - inactive
*2767*3855#
Power on ur phone ( Modeles Z105 , Z107v , Z500 , Z500V ect ....... )
1- Inser this Code *7465625*28782# without Sim Card
2- The phone Show you message of protected actived Click Ok
3- Inser This Code *7465625*28638# without Sim Card also
4- Now put ur Sim card Enjoy Phone is Unlock Tested and work fine

Samsung
*2767*3855# - FULL E2P RESET
*2767*2878# - CUSTOM E2P RESET
#*7337# - UNLOCK
*2767*688# - UNLOCK
*#0523# - CONTRAST
*#9998*523# - CONTRAST
*#8999*8378# - Service Menu (X100) Philips