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chamod max
2 Intern
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43 Posts
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1098
June 23rd, 2021 00:00
Need Help
Hello,
I have bought a backlit keyboard for dell 15 3542 and I have connected correctly the two cables. But the keyboard backlit does not work, it works without the light. So what can I do to fix it?.
chamod max
2 Intern
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43 Posts
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Posted June 23rd, 2021 03:00
On my Laptop the keyboard backlit slot named KBLIT is available. So it should work. Is it.
There will be a backlight option in system setup -- the hardware is only part of the support. If that option is not present in setup, the system does not support a backlit keyboard (it is common for the same basic system board to be used in multiple models, so the presence of a backlight connector is not always sure confirmation of backlit keyboard support).
chamod max
2 Intern
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43 Posts
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Posted June 23rd, 2021 09:00
Actually there no such thing in BIOS, Is there any way to get that option to BIOS(Like updating the BIOS).
Unlikely, but possible. A16 is the latest BIOS:
https://www.dell.com/support/home/en-us/product-support/product/inspiron-15-3542-laptop/drivers
If that's in place and you don't see the option to turn the backlight on/off, your system does not support a backlit keyboard.
chamod max
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43 Posts
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Posted June 24th, 2021 02:00
Thanks, I will update the latest BIOS and see whether the option is available in BIOS.So if it is not there, you are telling that system does not support a backlit keyboard. Are you sure?
chamod max
2 Intern
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43 Posts
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Posted June 24th, 2021 02:00
Does A16 BIOS Slow down the dell 15 3542
chamod max
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43 Posts
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Posted June 24th, 2021 05:00
you are saying that it will slow down the PC.
ejn63
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Posted June 24th, 2021 06:00
No, but your dual threaded asking of the same question makes it confusing to follow.
What I wrote is that it is unlikely that any BIOS update will add support for a backlit keyboard that wasn't present when the system was new.