Screen rotation doesn't work...

Hello guys,

I write you because the my screen can't rotate anymore. When I turn on my screen, the screen is well rotated according how i hold my tablet but when I unlock the screen to arrive on the main menu, the screen go back to the default rotation (exactly like if I hold the tablet with the camera is on the top of the screen). Somebody has any idea?

Thanks a lot!!

Just out of curiosity, is yout screen lock setting on or off?

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