LCD glows black after HD upgrade

[dragos426]

Upgraded to a 1.5TB seagate, followed all instructions as perfectly as possible, but her back together and the lcd screen just glows slightly. When I attach an external display that display works fine. HELP!

 

[BlueRevolution]

Take it apart again and check all of your cable connections.

 

[dragos426]

Take it apart again and check all of your cable connections.

Everything looked right after the third attempt but I will try again. Thank you.