Default Motorola RAZR i camera unable to initialize

I get a used razr i with this problem,and i did anything to fix it....
Factory reset,unlock bootloader,root,flashed custom ROM still nothing.
Also front camera and led flash do not work.
I get to divice/system/app folder reinstall camera app but i get error.
I get to apps/camera i deleted cache,i closed it, reopened but still nothing...
My ROM is KTR-ROM v1.12 but had this problem before.
I did factory flash with rsd-lite...still the same.
I put this question and in RAZR i forum but i did not get a solution.