I have Dell XPS14z the internal screen is brooking but when i use external display

[Samuel_119]

I have Dell XPS14z the internal screen is brooking but when i use external display i get beepings showing the its missing some part but when i put the broking it can turn on.
can i take the brooking screen of and use the external only.
HELP Please

 

[Petrossa]

Usually a laptop will only boot up the external display after doing POST, so if it is failing POST you will never see the error.
You'll have to get that panel replaced.