BUG GL502VMK screen, turns on with the screen off

[JefersonB]

When turning on the notebook, an image appears until the part of the Windows loading, then the screen goes out but the keyboard remains on (lights), then I turn off the screen with FN + F7 and the keyboard turns off (the lights) together, I press FN + F7 again and the screen and keyboard turn on normally.
I have already formatted windows, I have no way to update the bios because my battery has broken and this model is only possible to update with the battery for my unhappiness.

[Blake@ROG]

Hello JefersonB,
I'm sorry I'm not sure if I missed something,
but I don't see any issue from your description, may you describe more? or record a video?
When are where did the screen turn on when you tried to turned the screen off?
Thank you.