I think I hardbricked my Xperia SP

I was restoring my DRM keys and when I rebooted the phone , the screen was black . No Sony logo , nothing . It can only vibrate , when I try to go to the recovery , little blue led flash and dissapear and nothing . The phone get into the fastboot mode when I connet it to flashtool , but after 5 minutes I came back , it wont , it just blue light on the LED . I have AICP Rom 5.1.1 unlocked bootloader.