My Ender 3 V3 SE shakes violently for around 7 seconds the moment it starts

Basically, after i plug the printer and select my language, the print head start shaking after around 7 seconds and then it doesn’t do anything else, i know that pressing the switch manually keeps the whole sequence going, but it simply doesn’t move,

i have a video but i suppose i can’t place it here

Hi

I would check the limit switch located bottom left of the printhead with the printer OFF.

Does it click when pressed, and does it touch the far left of the rail.

Take the printhead shroud off and check the electrical connection.

If this is a new printer ensure the large ribbon cable is fully seated into the printhead socket.