kode rahasia ponsel 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)