[Q] I9305 problem topic

hello , I have an international S3 with cm11 on it (4.4.4). It all has been mooth untill this morning , when I try to boot the phone , the screen is white then it shutdown. I thought maybe the screen is damaged , so I tried to boot into recovery mode ==> the screen stays black.
I tried to boot into download mode and it worked , so the screen is ok.
My question is : can I boot into download mode , install official 4.4.4 via odin , then flash cm again ?
Thanks in advance