A1707 no backlight

[2informaticos]

Maybe bad solders, or some trace broken on the flex.
Did you test with known good LCD assembly?

 

[Dozer]

Problem solved, there was another crack in the cable, so i connected like in youtube and some jumper wires then from the junction until almost where the cable is coming out of the screen, hell that was a solder trip! ok, but its working now, thanks for help.