First Download & Install these stuffs
Now you need your Install server file . You must be aware about your phones OS version.Check out its catalog for this or google it.
Download Installserver for S60 v3 OS 9.1
Download Installserver for s60 v3 OS 9.2
Its da time to start da real hacking ! Close all running applications.
Now run Xplore n try to access c:\sys
By default you can't access! For that we need Hellocarbide
*Now Run Hellocarbide
*Go to options -Menu1
*You'll get an option like below
Now go to X-plore n again try to access c:\sys
Now you can see those stuffs below your c: dir
*Now Extract your installserver.exe file .............
*Now copy it to c:\SYS\BIN
N u r done e e e e e ! Your phone has been successfully hacked ! now you can install unsigned applications !