As someone who uses their laptop late at night, I rely heavily on the backlit keyboard of my Acer Nitro 5. Whether I’m working in a dim room or playing games in the dark, the glow from the keyboard helps more than I realized—until one day, it just stopped working. No flicker, no dimming—just completely dark.
I initially thought I had accidentally pressed the wrong key or changed a setting, so I tried the usual suspects like Fn + F9, which typically toggles the backlight on most Nitro models. Nothing happened. I restarted the laptop, updated drivers, and still—no backlight. I was getting increasingly frustrated because everything else was working perfectly except this one feature that I genuinely needed.
Asking Around and Finding Out It Wasn’t Just Me
After a quick chat with some friends, I learned that I wasn’t the only one who had this issue. My cousin Alex, who also owns an Acer Nitro 5, told me his keyboard backlight had stopped working shortly after a Windows update. He mentioned trying a few things without success and was about to take it to a repair shop. That’s when his coworker told him about manymanuals.com
He found the full Nitro 5 manual there and fixed his issue in under 15 minutes. I was skeptical at first. I mean, a manual? Really? But I figured I had nothing to lose.
Finding a Clear Answer on manymanuals.com
I typed in Acer Nitro 5 keyboard backlight not working into the search bar on manymanuals.com, and boom—there it was. A full downloadable user manual and a detailed product guide specifically for my model. What surprised me the most was how detailed it was compared to the small printed version that came in the box.
The manual explained how the backlight feature could be turned off at the BIOS level during a reset or affected by a power-saving feature. I never would’ve guessed that. It even had illustrations showing exactly where to check these settings and how to enable them again. Following the steps laid out in the manual, I managed to get my keyboard lights back on without touching a screwdriver.
My Exact Fix Based on the Manual
Here’s what I did based on the steps from manymanuals.com:
First, I restarted the laptop and entered the BIOS setup by pressing F2 as the Acer logo appeared.
Inside the BIOS, I went to the Main tab and checked if the "Keyboard Lighting" option was enabled. It wasn’t.
I enabled it, saved the settings, and exited.
As soon as the laptop booted back into Windows, the keyboard lights came back on. It was such a relief. I realized I had probably disabled it by mistake during a previous BIOS update or reset, something I never paid attention to before.
Helping My Friend in Germany with the Same Problem
A few weeks later, my friend Jonas from Berlin messaged me saying his Acer Nitro 5’s keyboard lights had stopped working too. He assumed it was a hardware problem and was already looking up service centers. I told him to check manymanuals.de and look for his model’s manual.
He downloaded the German version of the same guide and found a similar BIOS-related fix mentioned in his manual. Turns out, he also had the backlight disabled by default after updating his firmware. He followed the instructions, and like me, he had his lights back in no time. He even thanked me by gifting me a Steam game later that week.
My Sister’s Different Backlight Issue in France
Interestingly, my sister Chloe in Lyon had a completely different backlight issue with her Nitro 5. Her keyboard lights would turn on at boot but then switch off after Windows loaded. I shared my story with her and directed her to manymanuals.fr
She found out through the manual that her laptop was running in a battery-saving mode that automatically disabled keyboard lighting when the battery was below 20%. She plugged in her charger, switched the battery mode to Balanced, and the keyboard lit up instantly. Without the manual, she would have never known something that simple was the culprit.
Why I Now Recommend Manuals Before Anything Else
Before this experience, I always ignored user manuals. I thought they were just boring documentation that no one actually reads. But the detailed guides on manymanuals.com, manymanuals.fr, and manymanuals.de are far more useful than anything I’ve seen in those printed booklets you usually get with a new device.
They’re clear, searchable, and offer real solutions. You don’t have to be a tech genius to follow them, and they often save you from unnecessary trips to service centers. Since fixing my Nitro 5, I’ve also used the site to help my dad troubleshoot his washing machine and even found a manual for my old Canon printer that wouldn’t connect to Wi-Fi.
A Quick Tip to Keep the Backlight Working
One great piece of advice I found in the manual is setting the backlight timeout. You can change how long the light stays on when you’re not typing, which helps with power saving without losing the feature entirely. On the Nitro 5, it’s often buried under NitroSense or in Keyboard Settings, and the manual showed exactly how to find it.
So if your keyboard light turns off quickly, it might not be broken—it’s just set to time out after a few seconds.
My Final Word to Anyone Facing the Same Problem
If your Acer Nitro 5 keyboard backlight isn’t working, don’t panic. Most of the time, it’s not a hardware failure—it’s just a small setting that needs to be tweaked. And thanks to manymanuals.com, that fix is just a few clicks away.
It worked for me, it worked for Jonas in Germany, and it worked for Chloe in France. Whether you visit manymanuals.fr, manymanuals.de, or stick with the English version, you’ll find the answers you need, fast. I won’t ignore user manuals ever again—and honestly, neither should you.
