also want to thank al_madd for trying to help me with my problem
THIS IS FOR I9023, I DO NOT KNOW ABOUT OTHER MODELS
it is a very easy procedure, if i can do it, any one can
YOUR PHONE'S BOOTLOADER HAS TO BE UNLOCKED !!!
HOW TO BOOT PHONE WITH BROKEN POWER BUTTON
im sharing a dropbox link which got 3 files, one is a guide, the second contains files needed to work in odin, yes this procedure requires odin and the third is odin itself
So lets get started, read the guide carefully, select the correct DGS file and make sure auto reboot is checked even though the guide says no
so to boot the phone all i did was till step 4 in the guide and then the phone auto reboots and ther you go phone has booted
HOW TO UNROOT WITH BROKEN POWER BUTTON
For only booting i stopped at step 4, but to unroot you have to go all the way, make sure the correct files are selected and you should have no problem at all then
PDA -> PDA file
CSC -> DGS file
PHONE -> MODEM file
Bootloader -> Bootloader file
DISCLAIMER : i am not responsible for anythin that happens to your phone, you alone are responsible for it !!!