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July 29th, 2025 19:03
Inspiron 15 5379
My laptop keyboard backlight stopped working after restart next day
Last day it was fine
i saw some videos on internet but nothing happens
Then I decided to get new keyboard
Now I install new keyboard but the problem remains same
I install new windows drivers bio's
Even I tested the current coming from motherboard is good 5.1 v
I think the new keyboard backlight is faulty butt when I give 3.2 it glows
Is this really a isho or it's my bad luck
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ejn63
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28.6K Posts
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July 29th, 2025 19:22
If you're sure the new keyboard is backlit, two keyboards with faulty backlights likely mean the keyboard controller is the issue -- that would mean a replacement system board.
That may not be an economic repair -- the system is likely worth less than $100 complete and working.