What should I do if the ASUS UX21E series LCD has no display?

The solution to the ASUS UX21E series LCD no display problem is as follows:

1. Can you hear the system loading sound from behind the machine?

(1) You can hear the system loading sound à press FN+F7 can try to turn on the backlight to solve the problem.

 (2) Cannot hear the system loading sound-->Contact ASUS Service Center for testing.

ASUS UX21E-DH71