u r welcome
Here u go download movilcom soft for z105 z103 u can find it here in forum its package also includes Drivers for z500v so power on phone connect the orignal data cablecable come with it and connect to pc it will ask for Drivers give drivers from this package it Modem driver ok...Now open program and in Modem com Port just enter number of com where windows has loaded drivers and press unlock it will generate code thats all
Now all u have to do is enter wrong simcard in phone it will ask for network code enter which soft had given to u ALL done any more Question pm me