820-2914 board , I am missing LCD BKLT EN, It comes from GMUX U9600

[rupesh.amit]

Could someone help me with what to do next?
I am working on 820-2914 board. It’s a MacBook Pro 17”
I have display as confirmed bu chipmunk USB tester. I am missing LCD BKLT EN. It comes from GMUX U9600
If it’s not present, anything I can do?

 

[2informaticos]

So you get internal image for sure, only missing backlight?
Any history available?
Did someone try to disable the GPU?

 

[rupesh.amit]

I am not sure how to disable GPU ? The board came from another shop and they already have a jumper for LCD_BKLT_PWM

 

[2informaticos]

If someone tried disabling GPU in wrong manner, that can be the cause.
For example, disabling it in BIOS; doesn't resist to PRAM reset.

"So you get internal image for sure, only missing backlight?"

 

[rupesh.amit]

Thanks for your response