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[Solved] Lenovo Legion 5 Keyboard Backlight!

FilipinczykPL 40770 18
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How can I turn on or change the keyboard backlight on a Lenovo Legion 5 when Fn+Space does not work?

Use the keyboard hotkey itself: on supported Legion 5 models, Fn + Space (the key shown in the manual) turns the keyboard backlight on/off, adjusts brightness, and on RGB versions cycles the color/effect [#19076088][#19076113] The backlight is not controlled by a separate driver; it is a built-in keyboard function documented for the Legion 5-15/17 series [#19076113] If you want extra control, open Lenovo Vantage or Lenovo PC Manager and look for the keyboard/backlight settings there [#19076088][#19076179] If Lenovo Vantage does not show the lighting option, try Lenovo PC Manager from Windows Search or install Vantage from the Microsoft Store [#19076192] For the Legion 5-15IMH05 (Type 82AU), the thread indicates the backlight should be available through these keyboard/software controls rather than a BIOS setting [#19076118][#19076179]
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  • #1 19075956
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    Hello, I have a problem with the keyboard backlight of the Lenovo Legion 5 laptop.
    I would like some help information on how I could make the keyboard change, because using fn + space unfortunately does not work as it was in lenovo support ..
    That's why I'm counting on some helpful hints .. :)
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  • #2 19076024
    sunrise84
    Level 42  
    Posts: 7221
    Help: 979
    Rate: 873
    Read the instructions again, search on google.
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  • #3 19076035
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    I have already checked in the manual, there is nothing specific about it and the updates are downloaded practically everything that popped up
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  • #4 19076088
    sunrise84
    Level 42  
    Posts: 7221
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    But what should you change in this keyboard?

    Keyboard layout or keys in places?

    Added after 6 [minutes]:

    Fn + this "_" allows you to change some colors:

    Turn on / off keyboard backlight or customize it
    brightness.
    Note: Selected models have an RGB keyboard. In the case of such
    keyboard, the given hot key toggles the color and effect of its backlight.
    Additional controls are available in the Lenovo Vantage or Lenovo application
    PC Manager
  • #5 19076112
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    I mainly mean the comfort of the game, I have the Lenovo Vantage, and unfortunately I do not see the keyboard "backlight" option anywhere. I think some driver is missing to add this ;)
  • #7 19076118
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    Legion 5-15IMH05 (Lenovo) - Type 82AU
  • #8 19076167
    sunrise84
    Level 42  
    Posts: 7221
    Help: 979
    Rate: 873
    Well, did you understand the topic?
  • #9 19076171
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    It seems to me that the fault lies in the BIOS because I asked here and there, so my friend told me that I have a weak version of it: /
    And the display "lighting" is missing in the Lenovo Vantage application ;)
  • #10 19076179
    sunrise84
    Level 42  
    Posts: 7221
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    The Fn key plus such an asterisk:

    Open Lenovo Vantage, Lenovo PC Manager, or the launch bar
    application.


    Have you uploaded Lenovo PC Manager?

    It is needed for:
    Note: Selected models have an RGB keyboard. In the case of such
    keyboard, the given hot key toggles the color and effect of its backlight.
    Additional controls are available in the Lenovo Vantage or Lenovo application
    PC Manager.

    CO has Bios to backlight the keyboard.
    How old is this friend of yours? 14?

    First, let him read what the BIOS on the motherboard does.

    Added after 4 [minutes]:

    What happens when you press the Fn key and what does it say in the instructions on pages 17 and 18?

    Is something going on with the backlight?

    because when you start rummaging around the laptop's bios, there is still such a function in Bios:

    Enable or disable Fool Proof Fn Ctrl
    Step 1. Open UEFI / BIOS Setup Utility.
    Step 2. Select Configuration.
    Step 3. Change the Fool Proof Fn Ctrl setting to Enabled or Disabled.
    Step 4. Select Exit ? Exit Saving Changes.
    When enabled, the Fn key and the Ctrl key can be used interchangeably for the z key combination
    with the Ctrl key. For example, you can press Ctrl + A or Fn + A to select all text in
    text editing application.

    But it shouldn't affect the backlight
  • #11 19076190
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    Can you still ask for a link to Lenovo PC Manager? :)
    Because, unfortunately, I cannot contact this laptop: - /
  • #12 19076192
    sunrise84
    Level 42  
    Posts: 7221
    Help: 979
    Rate: 873
    Your computer may be pre-installed with either Lenovo Vantage or PC software
    Manager. To open it, enter the software name in Windows Search and select
    displayed result.
    Note: If Lenovo Vantage is not preinstalled, you can use it
    downloaded from the Microsoft Store.

    Added after 49 [seconds]:

    What do you mean you have no contact with the laptop?
    Dad hid you for the night?
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  • #13 19076201
    FilipinczykPL
    Level 5  
    Posts: 7
    Rate: 7
    Well, man, he's out of the house :-)
    Okay, from what I played with him today, I already have this Lenovo PC Manager / Lenovo Vantage
  • #14 19076209
    sunrise84
    Level 42  
    Posts: 7221
    Help: 979
    Rate: 873
    I don't know what your problem is.
    And what do you actually expect from this backlight.

    Just write that the backlight does not meet your expectations and buy a "Christmas tree" keyboard and mouse to show off your fancy equipment in front of your friends. :P

    So much for me ...
  • #15 19096498
    pawkko
    Level 2  
    Posts: 4
    Rate: 2
    Hello,
    I bought a lenovo 7i laptop with an RGB backlit keyboard. After installing Windows 10 Home and iCUE software to configure the backlight, everything is fine. I set a uniform backlight and actually after turning on windows and logging in - my saved backlight will be activated.
    The problem concerns the time from the moment I turn on the laptop to enter the password for logging in - during this period the whole computer lights up in all the colors of the rainbow - how can you remedy this and turn off the backlight completely or change it to a neutral one. This problem also appears when I close the monitor flap and suddenly everything pulses for a few seconds. How do I turn it off?
  • #16 19096513
    sunrise84
    Level 42  
    Posts: 7221
    Help: 979
    Rate: 873
    "The problem concerns the time from the moment I turn on the laptop to enter the password to login - during this period the whole computer lights up in all the colors of the rainbow - how can you remedy this and turn off the backlight completely or change it to a neutral one. The problem also appears when I close the flap the monitor and suddenly everything blinks for a few seconds. How do I turn it off? "

    Is that so annoying?
    You have a backlight configuration program, search there.
    Probably the keyboard works in the deflaut settings until the program that is responsible for controlling the backlight is loaded.

    That's it for the topic.
  • #17 19097694
    pawkko
    Level 2  
    Posts: 4
    Rate: 2
    sunrise84 wrote:
    Is that so annoying?
    You have a backlight configuration program, search there.
    Probably the keyboard works in the deflaut settings until the program that is responsible for controlling the backlight is loaded.


    The question is whether somehow these settings can be bypassed or disconnected - honestly, I would prefer that it is not lit at all until the icue settings are loaded.
  • #19 19992082
    krzysiek296
    Level 11  
    Posts: 15
    Rate: 6
    Maybe it will be useful to someone.I have a Lenovo y520 and I could not turn on the keyboard backlight.
    I found a program called Lenovo Nerve Sense and one that does not need to be updated in Microsoftstore because it is not there. The file is called wwg2050e.exe and only with this program I turned on the backlight ba,I did not even know that there is RGB.The program can be downloaded.Greetings.
    Attachments:
    • wwg2050e (1).exe (55.07 MB) You must be logged in to download this attachment.
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Topic summary

✨ The discussion revolves around issues with the keyboard backlight on the Lenovo Legion 5 laptop. The user initially attempted to use the Fn + Space shortcut to change the backlight settings but found it ineffective. Subsequent responses suggested checking the Lenovo Vantage and PC Manager applications for additional controls, as well as ensuring the BIOS settings are correctly configured. The user identified their specific model as Legion 5-15IMH05 and suspected a BIOS issue might be preventing access to backlight options. Other users shared experiences with different Lenovo models, highlighting the importance of specific software for RGB control and potential solutions for backlight customization.
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FAQ

TL;DR: Legion 5 backlight uses 3 levels via Fn+Space; "Selected models have an RGB keyboard." Use Lenovo Vantage or PC Manager to customize effects and zones. This FAQ helps Legion 5/7 owners fix hotkeys and find lighting controls fast. [“Lenovo Legion 5 15/17 User Guide”]

Why it matters: Clear lighting control improves gameplay comfort, reduces distractions, and speeds night typing.

Quick Facts

  • Fn+Space cycles Off/Low/High (3 levels) on single‑color keyboards; on RGB models it cycles effects; deeper controls live in Vantage or PC Manager. [“Lenovo Legion 5 15/17 User Guide”]
  • RGB menus appear only on RGB‑equipped models; single‑color keyboards expose brightness via hotkeys, not per‑zone software controls. [“Lenovo Legion 5 15/17 User Guide”]
  • No extra driver is required; the backlight is hardware‑controlled via the keyboard. Software extends features only. [Elektroda, sunrise84, post #19076113]
  • BIOS provides Fn/Ctrl swap but no keyboard‑lighting settings; manage lighting with hotkeys or Lenovo apps. [Elektroda, sunrise84, post #19076179]
  • Legion 7i may show a rainbow effect until Windows loads control software; no confirmed firmware toggle to disable it. [Elektroda, pawkko, post #19098538]

How do I turn on or change the Lenovo Legion 5 keyboard backlight?

Use Fn+Space. It cycles Off, Low, and High on single‑color keyboards. On RGB models, it cycles effects. For deeper control, open Lenovo Vantage or Lenovo PC Manager. There you can adjust per‑zone colors, effects, and brightness. Quick How‑To:
  1. Press Fn+Space to verify the backlight toggles through 3 levels or effects.
  2. Install or open Lenovo Vantage from Microsoft Store, or launch PC Manager.
  3. In Lighting/Keyboard, choose colors, effects, and brightness, then apply.
"Selected models have an RGB keyboard." [“Lenovo Legion 5 15/17 User Guide”]

Fn+Space does nothing on my Legion 5‑15IMH05 (82AU). What should I check?

Check if Fn and Ctrl are swapped in BIOS (Fool Proof Fn Ctrl). If enabled, the Fn key moved to the Ctrl position. Use that new Fn position with Space to toggle backlight. Or disable the swap and reboot. This setting does not modify lighting logic, but it changes which key acts as Fn. Then test the hotkey again in Windows and at POST. [Elektroda, sunrise84, post #19076179]

Lenovo Vantage shows no "Backlight" or "Lighting" menu. Is that normal?

Yes, if your keyboard is single‑color. Software lighting menus display only on models with RGB keyboards. Use the Fn+Space hotkey for brightness on non‑RGB variants. On RGB models, Vantage or PC Manager exposes color and effect controls. The manual states, "Selected models have an RGB keyboard," and points to additional controls in Lenovo software. [“Lenovo Legion 5 15/17 User Guide”]

Do I need a driver to enable the keyboard backlight?

No. The backlight is hardware‑controlled via keyboard hotkeys. Lenovo Vantage or PC Manager adds customization for RGB units. You do not install a separate "backlight driver." "No driver, these are the functions typed on the keyboard." [Elektroda, sunrise84, post #19076113]

Can I control Legion keyboard lighting in BIOS?

Not on Legion 5/7. BIOS offers a setting to swap Fn and Ctrl keys. It does not include lighting controls. "It shouldn't affect the backlight," as one expert noted. Use Fn+Space and Lenovo software instead. [Elektroda, sunrise84, post #19076179]

Where do I get Lenovo Vantage or PC Manager?

One of them may be pre‑installed. To open, type the app name in Windows Search. If Lenovo Vantage is missing, install it from the Microsoft Store. PC Manager may ship with some regions and models. Open whichever is available to access keyboard lighting pages. [Elektroda, sunrise84, post #19076192]

On Legion 7i with iCUE, why does the keyboard show a rainbow before login?

Until the control service loads, firmware runs a default RGB effect. That is why you see a rainbow at boot and after lid events. As one reply states, "Keyboard uses default settings until the control program loads." After Windows loads iCUE, your saved static profile applies. [Elektroda, sunrise84, post #19096513]

Can I disable the pre‑login rainbow on Legion 7i?

Not currently, per user reports. A Lenovo forum thread linked in the discussion confirms no available switch to stop the pre‑boot effect. Expect the rainbow until Windows loads your iCUE or Lenovo profile. After login, your custom profile should apply automatically. [Elektroda, pawkko, post #19098538]

After closing the lid, my Legion 7i pulses colors for a few seconds. How do I stop it?

This brief pulsing is the firmware’s default behavior during sleep or wake transitions. Users report it lasts a few seconds, then your profile returns. There is no published toggle to suppress this sequence in the firmware. iCUE or Vantage reasserts your settings once services resume. [Elektroda, pawkko, post #19096498]

My model is Legion 5‑15IMH05 (Type 82AU). Should I see RGB options?

Only if your exact sub‑model includes an RGB keyboard. If it does not, software lighting pages will be absent. Use Fn+Space to switch Off, Low, and High brightness on single‑color variants. "Selected models have an RGB keyboard," and only those expose color menus. [“Lenovo Legion 5 15/17 User Guide”]

Is there any alternative tool to enable backlight on older Lenovo Y520?

Yes. One user enabled the Y520 keyboard backlight using Lenovo Nerve Sense (wwg2050e.exe). Microsoft Store does not carry it. Download the specific installer and run it to expose backlight options. Results vary by region and BIOS version. Back up your system before installing legacy utilities. [Elektroda, krzysiek296, post #19992082]

Will updating BIOS add keyboard backlight features?

No. A BIOS update will not add backlight hardware or software controls to non‑RGB models. BIOS contains a Fn/Ctrl swap option only. Lighting is controlled by hotkeys and Lenovo apps within Windows. Focus on Vantage or PC Manager for changes, not BIOS updates. [Elektroda, sunrise84, post #19076179]
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