9650 keyboard backlight doesn't light up

[zhxiyao]

hey guys
recently, i found my 9650's keyboard could not light up. I have tried to detached the phone and set up again. the problem was settled but the keyboard light could not work again after 2 days. And re-assembly also does not work anymore.
There are several lines on the main board. Is there anyone who knows which line controls the key light? Or related fixing ways?

Thxs
Benjamin Z.

[jbarbero]

Are you sure it isn't an OS setting or corrupt file?

[zhxiyao]

Originally Posted by jbarbero

Are you sure it isn't an OS setting or corrupt file?

Coz I had once settled this problem by re-assembly, I think it should be a hardware connection issue.

[jbarbero]

When you reassembled you did several things; battery pull, etc; so I don't think it is definitely the wiring...it may be something else is all I'm suggesting...especially if your hardware fixes only seem to be temporary.

[zhxiyao]

Originally Posted by jbarbero

When you reassembled you did several things; battery pull, etc; so I don't think it is definitely the wiring...it may be something else is all I'm suggesting...especially if your hardware fixes only seem to be temporary.

your words are reasonable, i will try to reset the system. Thx