Default [Q] Video camera error

each time i rec something it say camera not avabile with stock camera tried other modded camera like m2 / z2 / m same error
it happend to me when i unistalled cm11 nightly build and relocked bootloader and restpored drm keys
samsung sgh-e250 > nokia n97 > nokia c3-00 > xperia miro > iphone 4 32gb > xperia arc >blackberry curve 8520> xperia miro > xperia v >blackberry bold9700 > xperia z1 ( sold ) and ipad 4 16gb + LTE