laptop can't power on

my laptop acer e5 473t when press power button nothing on display cpu fan spins about 2 second and led light turn on and turn off both in 2 seconds immediately , on motherboard don’t have audio - usb cable , may be is it problem ? i tried cmos and ram reset unplug or port and hold power button 30 second but nothing happened

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@robaka777 you said you tried CMOS reset. How did you do that?

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i could not remove battery , motherboard has battery switcher on or off

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Okay so you never got to the reset? Your computer essentially does not start up into the BIOS or anything

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i think i did everything for reset

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