How to reboot my Acer ES1-431 without display or connected display

[Azam_5]

My display cracked and i connect my laptop to a monitor via hdmi. Suddenly, my son had it unconnected and the screen went blue. But the cursor seems to be operating ( as it sometimes appear behind the cracks). Now, i couldn't connect to any display unit. i need to reboot so that the display could be use again.
is there any fast solution or i could just install a new lcd screen?

 

[Laptop_Nerd]

Hi,

The fastest solution would be to open the laptop, disconnect one end of the ribbon cable that connects the LCD to the motherboard then reconnect your external monitor that uses HDMI and it should now work as the default display meaning you'll be able to see everything in it even it BIOS.

 

[Tradesman1]

Most laptops have screens available for sale, will have to decide if worth replacing