After relock my phone does'nt work

Hi guys i ihave xperia z2 and unlock my phone i use kitkat 4.4.2 everythıng is fine with unlock but i relocking my phone i using stock kernel my phone not working because i lost drm keys but i recover drm keys back with forum xda developer some guy zip file i flashed adwance stock kernel i used it then i flashed drm.zip xreality for mobile and bionz work fine but ı want to relock back drm keys with relock my phone does'nt worked ıs there any chance after relock my phone working again because 1 week ago ı used lollipop 5.1.1 and unlock my phone and used advance kernel wıth twrp and i flashed drm keys.zip and relocked my phone and i flashed stock kernel my phone worked wıth relock everythıng just fine how i using as lollipop with relock 4.4.2 .... İs there any chance???? 4.4.2 sorry my bad inglish