820-2915 gMux Firmware updated but no blacklight now

[RaezorSharp]

The board is a 820-2915B.... the working file seems to be the issue with the video at boot...

I found a generic 820-2915/2914 jed file (https://github.com/ayilm1/gMUXBypass).....and tried it....had only success in stopping the flickering......on the boot....after the apple logo the screen goes black and the backlight looks like it remains on.....can't see the login screen as yet.

 

[RaezorSharp]

Figured that my test display was having the issue....and not showing the higher frequency.....so I've partially resolved this by using the generic jed file.....