So I have a Lenovo Ideapad 3 15ITL6 that originally came without keyboard backlight. Recently, I found myself in need of a replacement for the keyboard. I bought the whole C-Cover and decided to go for the backlit option since it was cheaper for some reason. After installing it, the keyboard, touchpad and speakers work just fine. Although, it seems that the backlight does not work. I tried all the key combinations, I checked the cable hundreds of times, updated my drivers including bios, but to no avail. My motherboard has the `JKBL1` port, where the backlight cable goes, so that must mean it supports the backlight. Is there something I'm missing and should know about?

Hello guest46754.

Welcome to our community.

Let's check first if there's a compatible backlit keyboard that you can use for your system model by sharing with us the product number that would look like 21D20000US from the sticker or Vantage app or typing sysinfo in the search box. This will help us to get more details about your machine variant.

Looking forward to your response.

Rodney_Lenovo

If you have need or are interested Lenovo is currently running a surplus parts sale in North America, EMEA and Asia Pacific regions, a lot of parts are offered at heavily discounted prices.
Visit the Lenovo Parts Clearance site to see the offerings.

Thank you!

I have Ideapad 3 15ITL6, model 82H800QBRA. And I bought C-Cover, part number 5CB1B69152.

Thank you for sharing the product number. I checked the product specifications of IdeaPad 3 15ITL6 and it shows that some models have keyboard backlight. 

I'd like to inform you as well that the C-Cover with Keyboard with the part number 5CB1B69152 that you purchased is the correct keyboard part as it has backlight feature. For the list of all compatible keyboard parts that you can use, you can visit this link (click on Machine Type, under Commodity Type, select C-Cover With Keyboard). 

Since you already have the part, please refer to the laptop's hardware maintenance manual for proper removal and replacement steps. Please take note that we only recommend DIY method if you're comfortable in upgrading the laptop's component otherwise, kindly consider reaching out to the Technical Support Team in your region or bring the machine to an authorized service center.

Best regards,

Rodney_Lenovo

If you have need or are interested Lenovo is currently running a surplus parts sale in North America, EMEA and Asia Pacific regions, a lot of parts are offered at heavily discounted prices.
Visit the Lenovo Parts Clearance site to see the offerings.

Thank you for confirming that I have the right part for my laptop.

As I mentioned above, I have already removed my old C-Cover and replaced it with this new C-Cover that I purchased. The problem is that my keyboard backlight doesn't seem to be working. Everything else, on the other hand, works just fine. If this is a software problem, I'd like to know how I can try to resolve the issue. If this is not a software problem, then it must be the hardware problem. In that case, can I return the part that I got or can I get it replaced?

Please make sure that your system has the latest BIOS and driver updates via Lenovo Vantage app. 

Also, check if there are any pending Windows Updates that needs to be installed including the optional ones.

Restart your laptop if needed then press Fn key + Spacebar or Fn key + Esc key to enable the keyboard backlight.

Update us how things go.

Rodney_Lenovo

If you have need or are interested Lenovo is currently running a surplus parts sale in North America, EMEA and Asia Pacific regions, a lot of parts are offered at heavily discounted prices.
Visit the Lenovo Parts Clearance site to see the offerings.

Thank you for your reply. I updated my bios a couple of days prior to this, and Lenovo Vantage app says it's up to date. Windows says I'm all up to date with its updates as well, even the optional ones. Fn + Esc toggles FnLock and Fn + Spacebar does absolutely nothing. What should I do?

Kindly check if there's any settings related to the keyboard backlight in Lenovo Vantage app. You can also check this link for additional reference. 

Best regards,

Rodney_Lenovo

If you have need or are interested Lenovo is currently running a surplus parts sale in North America, EMEA and Asia Pacific regions, a lot of parts are offered at heavily discounted prices.
Visit the Lenovo Parts Clearance site to see the offerings.

I don't see any settings related to keyboard backlight in my Lenovo Vantage App. The closest thing I have is this (I attached the screenshot). I also tried steps three and four from the link you sent. Keyboard backlight won't turn on in BIOS and power drain didn't help either. Should I do a clean install of my Windows?

Before you consider to perform a clean installation of Windows, you can try to reset your Windows PC without losing files. To do this, go to Settings > System > Recovery, then click "Reset PC" and choose "Keep my files".

Please keep us updated on your progress, thanks.

Rodney_Lenovo

If you have need or are interested Lenovo is currently running a surplus parts sale in North America, EMEA and Asia Pacific regions, a lot of parts are offered at heavily discounted prices.
Visit the Lenovo Parts Clearance site to see the offerings.