I've bought a Macbook Air mid 2013 trough a secondhand website. After test it all I told the man that I'm interested. So I payed.
Once at home, I realize the keyboard backlight doesn't work. I've reseted PRAM and SMC. It's not working.
I've opened the computer to see if could be something wrong just like a wire disconnected but nothing seemed not right.
The computer is no longer covered by Apple guarantee and I wouldn't like to pay for the repair.
Is there any other option to get my computer fixed or something else I could do to make the backlight work?
I have run AHT (Apple Hardware Test) and it tells me there's an issue with my battery, that needs maintenance. The battery only has 160 cycles and it last 8-9 hours from 100% to 0%, so I don't understand.
I run the next command:
ls /System/Library/Extensions | grep AppleBacklight
and this is the output:
When I got home I restored everything from my Time Machine backup, so I don't know if that's the cause.
One more thing: when the macbook is shut down and I press the power button, the boot screen is usually gray color with the Apple logo. In this computer the screen is black with the Apple logo.