A1932 keyboard backlight funcion desappear.

BCN_Techs

Member
Pressing button with no result. It's not giving "Forbidden" icon due sensor, there is just no icon. If i put tu use "F"
 

BCN_Techs

Member
No liquid, no history. Broken screen, changed it and found that it doesnt work ( i am not sure if before display replacement it was working, but mu gues it wasnot). Also tried another screen with same result, tried PRAM and SMC restes.
As i told in my first post, i am sure that keys are working because with Fn it is making clicking sound
 
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2informaticos

Administrator
Staff member
" If i put tu use "F" "
You might want to say, but not really said.

Probably ALS sensor doesn't work now.
Direct flashlight on webcam area and check if LCD backlight reacts.
 

BCN_Techs

Member
you are right, seems be ALS sensors. Automaticly adjust brightner also disappeared for display settings. Anything to check on logic board?
 

BCN_Techs

Member
ok. ANy way old display is totally destroyed. Will try if keyboard backlight start working with old display.

Anyway:

As i remember if internal display is disconected, keyboard backlight is automaticly on, right?
 

BCN_Techs

Member
with old display also no keyboard backlight.


Also even there is no automatic brightness adjustmen, at least on display, i can do it manually. But on keyboard i dont even get this icon:


backlit-keyboard-not-working.jpg
 

BCN_Techs

Member
Tried revive through Apple Configurator, but no changes.


P.S. Flashed it second time and now i have backlight on keyboard but only when i am on user passwords screen. Once i put password and it loads the system machine is back exactly in first post situation.
 
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BCN_Techs

Member
I dont even know that there are this two qualities. Anyway cuatomer take it away without keyboard backlight.

PS. Even if ALS sensor is missing keyboard backlight must light when press the button. I testes it with no display on other air and keyboard is lighting
 
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