Dell laptop screen not turning on

[jayanth34]

I have a Dell Inspiron 7559. My laptop turns on but the display doesn’t turn on, its just black. I tried connecting it to an external dispaly and everything works fine. The battery indicator light on the laptop blinks (2 times orange and 7 times white). Can anyone let me know what might the issue be? I have already tried replacing the display cable and LCD screen, but nothings seems to fix it.

 

[fagetti]

one issue like this was actually just solved. 2 orange 7 white is LCD error. Íts still either your panel / cable. Maybe you bought wrong model which isnt supported? Look connections closely. Also connector for lcd in motherboard check it for missing or bent pins and look that it connects well. Check cable for damagew

 

[fagetti]

lcd circuit is ok in motherboard if it reads correctly that LCD error with flash codes