Ubook 2023 i5-10210Y - Wake up from energy saving mode

How can I wake up my Ubook 2023 (Serial: YUbokXCW3H231000782) from energy saving mode if the blue Led is still on?

I always have to reboot the tablet using the power button, if the energy saving mode turns on.
Is that normal?

maybe @manonegra knows, he knows about all the tablets