The rear camera does not work if you utilize flash tool and delete the DRM?z3 compact

what ise was this , use the tool flash but do not finish liberal bootloader via computer just put it in the program and flash without making a backup , now more than I put a new generic rom the camera not only captures images in black comes out , that is because the DRM I read in an article that if I delete these data the camera becomes unusable or is it that my camera was spoiled ?:(

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