Keyboard backlight on ASUS VivoBook laptops: how to check, enable and troubleshoot

Laptops ASUS VivoBook have long gained popularity due to their combination of stylish design, performance and affordable price. However, one of the most common questions from potential buyers is is there a backlit keyboard in a specific model? The answer is not as clear-cut as it might seem: it all depends on the series, year of manufacture and even the region of sales.

In this article we will figure out what VivoBook are equipped with backlighting, how to activate it (including hidden keyboard shortcuts), and what to do if the function suddenly stops working. You will also find out whether it is possible to install the backlight yourself and what alternatives exist for models without it. Spoiler: even in budget series, RGB backlighting is sometimes found - but it needs to be “unlocked” through the BIOS.

Which ASUS VivoBook models have a backlit keyboard?

Not all laptops in the line VivoBook equipped with backlight - this depends on the positioning of the model. Typically, the function is available in premium and gaming series, as well as in some business-oriented modifications. Below is the current list of series with confirmed backlight support (data for 2026):

• 🔹 VivoBook Pro (K3500, K3600, K5500) — white or RGB backlight (depending on modification).
• 🔹 VivoBook S (S14/S15/S17, 2021-2026 models) — single-color lighting in top configurations.
• 🔹 VivoBook Flip (TP470, TP570) — backlighting in transformers with processors Intel Core i7.
• 🔹 VivoBook 14/15/17 (X415, X515, X715) - only in modifications with the prefix UA or UM (For example, X515UA).

Important: even within the same series, backlighting may not be available in basic versions. For example, VivoBook S14 S433 in configuration with Intel Core i5 often goes without backlight, while i7 version has it. To find out for sure, check:

1. Labeling on the box (look for a mention Backlit Keyboard).
2. Characteristics on the official website ASUS (section Specifications → Keyboard).
3. Owner reviews on Amazon, Yandex.Market or Reddit (search by model + “backlight”).

How to turn on the keyboard backlight on ASUS VivoBook

If your model supports backlighting, you can activate it in several ways. The most common one is keyboard shortcut. Usually this is:

• 🔹 Fn + F3 or Fn + F4 (depending on model).
• 🔹 Fn + up/down arrow to adjust brightness.
• 🔹 Button with icon 🌓 (located on the keys F1–F12).

If the combinations don't work, check:

1. Are keyboard drivers installed (download from official website in section Driver & Tools → Keyboard).
2. Is the function activated in the BIOS (less often - in ASUS Armoury Crate for gaming models).
3. Is the backlight disabled in Windows settings (path: Settings → Devices → Keyboard).

⚠️ Attention: In some models (for example, VivoBook S15 S533) the backlight turns on only when connected to a 220V network. On battery, the function can be disabled to save power.

Table: Comparison of VivoBook models by backlight type

Model	Backlight type	Colors	Brightness adjustment	Notes
VivoBook Pro 14 K3400	RGB	16.8 million shades	Yes (3 levels)	Managed via Armoury Crate
VivoBook S14 S433 (i7)	White	1 color	Yes (2 levels)	Not available in basic versions
VivoBook Flip TP470	White	1 color	No	Turns on only when connected to the network
VivoBook 15 X515 (modification UA)	White	1 color	Yes	Often missing from OEM versions
VivoBook 17 X712	No	—	—	No backlight provided

If your model is not in the table, specify its exact name (for example, X515MA-BR004) and check the specifications on the manufacturer's website. Sometimes backlighting is present but not specified in marketing materials.

Why doesn't the keyboard backlight work?

If the backlight previously worked, but suddenly stopped turning on, the reasons could be either software or hardware. Let's look at typical scenarios:

• 🔌 Nutrition problems: The laptop is running on battery power, and the BIOS settings have the backlight disabled when in offline mode. Solution: connect the charger or change the settings in the BIOS (section Advanced → Keyboard Illumination).
• 🖥️ Driver failure: After updating Windows or keyboard drivers, the function may fail. Solution: roll back the driver to Device Manager or install it manually from the site ASUS.
• 💡 Mechanical failure: The LED has burned out or the backlight cable has come loose. Solution: contact a service center (self-repair may void the warranty).
• 🔄 Software conflict: Programs like Razer Synapse or MSI Dragon Center may block backlight control. Solution: Remove the conflicting software or configure exceptions.

⚠️ Attention: If the backlight flickers or is unstable, this may indicate keyboard controller malfunction. In this case, it is not recommended to use the laptop until diagnosis - a short circuit can damage the motherboard.

How to check the backlight cable?

Carefully remove the key (for example, Space) and inspect the backlight strip for damage. If the tape has moved away from the connector, it can be temporarily pressed, but a full repair will require a soldering iron and experience working with electronics.

Can I add keyboard backlighting myself?

Technically yes, but this is a complex process that requires disassembling the laptop and soldering skills. There are two main ways:

1. LED strip installation: Thin LED strips are glued under the keys (for example, WS2812B), powered by USB or battery. Plus: cheap (from 500 ₽). Disadvantage: uneven glow, risk of damage to the keyboard.
2. Replacing the keyboard with a backlit model: On AliExpress or eBay you can find compatible keyboards (search by model number, e.g. DAX515UA). Plus: original look. Disadvantage: expensive (3-8 thousand rubles) and requires complete disassembly of the laptop.

Before proceeding with modification, please note:

• 🛠️ Guarantee ASUS will be cancelled.
• ⚡ Risk of short circuit if connected incorrectly.
• ⌨️ There may be compatibility issues (for example, function keys will not work).

Alternatives to keyboard backlighting

If your VivoBook does not support backlighting, and there is no desire to modify it, consider alternative solutions:

• 💡 External USB light: Flexible LED strips with a USB connector (for example, Baseus LED Strip). They are attached to the laptop body and illuminate the keys from below. Price: 600–1500 ₽.
• 🖥️ Desktop lighting: Table lamps with adjustable light (eg Xiaomi Mi LED Desk Lamp). Illuminates the keyboard from above and requires no modifications.
• 🔦 Keyboard Stickers: Glow-in-the-dark key stickers (for example, Logitech Keyboard Skin). A cheap solution (200–500 RUR), but they wear out over time.
• 🎮 External mechanical keyboard: Compact models with backlight (for example, Keychron K3 or Razer Pro Type). Connect via Bluetooth or USB-C.

⚠️ Attention: Cheap USB lights can create unwanted noise that interferes with Wi-Fi or Bluetooth. If, after connecting the tape, problems with wireless devices begin, try using a USB hub with a ferrite filter.

Frequently asked questions about ASUS VivoBook keyboard backlighting

Can the keyboard backlight be repaired under warranty?

Yes, if the malfunction was not your fault (for example, the LED burned out without mechanical damage). Contact an authorized service center ASUS with receipt and warranty card. The average repair time is 5–14 days.

Exclusions: Warranty does not cover damage from liquids, falls, or DIY repairs. If you disassembled your laptop, service may be refused.

Why does the backlight only work on half of the keyboard?

This is a typical sign cable damage or waste contacts LED strips. Possible reasons:

• The laptop has been dropped or subjected to strong vibration (for example, in a backpack).
• Liquid has gotten under the keys (even a small amount can cause corrosion).
• Manufacturer's defect (found in models VivoBook S15 2020).

Solution: just replace the keyboard or solder the cable in the service.

How to disable automatic backlight turning off when inactive?

Some models VivoBook The backlight goes out after 10–30 seconds without pressing. To fix this:

1. Open Control Panel → Hardware and Sound → Devices and Printers.
2. Find your keyboard (eg ASUS Keyboard Device), right click → Options.
3. Tab Power management → uncheck Allow device to turn off to save power.

If the item is not there, try updating the driver or using the utility ASUS Keyboard Hotkeys.

There is a backlight, but it is dim. How to increase brightness?

Try these methods:

• Use a combination Fn + up arrow (sometimes you need to hold Fn 2–3 seconds).
• B ASUS Armoury Crate (for gaming models) go to Device → Keyboard → Brightness.
• Update your BIOS—newer versions sometimes add additional brightness levels.

If all else fails, the problem may be discharged capacitors on the backlight board. In this case, only repair will help.

Where to buy replacement backlit keys for VivoBook?

Original keys can be ordered:

• On ASUS official website (section Accessories).
• On AliExpress (search by laptop model + “keyboard key”).
• In Russian spare parts stores: Citilink, DNS (section “Accessories for laptops”).

Cost of one key: 100–500 ₽. To replace, you will need a plastic spatula or a credit card (to pry off the key).