[Q] Big problem with my screen - Galaxy Note II Q&A, Help & Troubleshooting

Hello everybody! I've recently upgraded my Note 2 to android 4.3.Yesterday,just of a sudden,the phone turned off and stayed like this for 10 minutes.Then it booted up but the screen was still off.I can receive calls and I can answer,I can navigate,the touchscreen works but the screen just won't turn on.Sometimes it does turn on but after a few seconds it turns off and stays that way.I read that it may be a software problem,because the 4.3 android update so I barely managed to flash it with Odin with the latest Omega firmware.I even managed to flash a custom recovery,it booted up,the screen was working for a couple of minutes but then it turned back off.What should I do in this situation?I'm new to this forum so I'm sorry for any mistakes!Thank you in advance!

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