This really is driving me insane, surely by installing cyanogenmod it changes the kernel anyway. Ive just installed cyanogenmod and the problem still remains. This all occured after unlocking my phone via the hidden menu in android 4.1.1. I wish I just paid the lousy £20.
flashing the kernel sawdoctor suggested should be the similar way of you flashing cyanogenmod
How did you install cyanogenmod anyways?