Default [Q] fixing "keypad and phone not working" issue after flashing custom kernels

Hey there, I've got some problem with my keypad and phone after flashing LuPuS v16. The thread said that it would fix after a certain times of reboot, but it just wouldn't though I've rebooted for like 6-8 times. Anyone would explain the issue that I'm having?
Add: it appears not only LuPuS, but also Vengeance 1.38

rom: stock ics.587
kernel: advanced stock [http://forum.xda-developers.com/show...38916&page=18]
mod: cyber-shot + fluid engine 3.2
bootloader: unlocked

sent from LT15i