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06-30-2020

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Legion 5-15ARH05 Backlit Keyboard problem

2020-06-30, 15:11 PM

Hello, I just bought a Lenovo Legion 5 15ARH05 (Ryzen 7 4800H) and have an issue on backlit keyboard.

 

When the computer start/restarted, the Fn + Spacebar function normally for the backlit but after turning it off it won’t lit again. It only flashes for a second.

 

I have updated the Windows to 2004 version as well as the system through Lenovo Vantage where there was only AMD and NVdia update recommendation, but the problem persists.

 

I have called the Lenovo premium care and followed the instructions: 

1.  Download and install Lenovo Energy Management

2.  Factory reset, and do the windows set up again

Still it did not solve the problem.  

 

They called me to remote update the Bios to the latest version "EUCN19WW" (the original Bios installed is EUCN16WW). 

We cannot do this because I did not bring my laptop with me when they called.  Trying to call them again today to confirm if I can just update the Bios myself but no response yet.

 

Anybody have same issue? Need some advices.  

 

By the way, after the factory reset and have Windows back to original version I did not get option to update to Windows 2004 version when checking the windows update. What should I do to upate the windows?

 

Thank you.

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2 Posts

07-01-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-01, 11:34 AM

I have this problem too.

I notice it after auto update Lenovo Vantage app + 2 driver (AMD & Nvidia).

 

The different is I still on windows 10 version 1909. 

And also I can use Fn + Space after restart in Login Screen.

 

For bios I didn't get notification update from lenovo vantage.

 

I think you will be better to stay at 1909 version, because 2004 has alot of bug.

CMIIW

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5 Posts

06-26-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-02, 4:22 AM

I'm experiencing the same problem. I find that the backlight fn+spacebar hotkey stops to working AFTER you opened the lenovo vantage app/toolbar. By the way, some additional problems of my keyboard backlight includes the escape/fn lock indicator not working, while the caps lock and the num lock indicator works fine. Can you check if yours has the same issue?

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2 Posts

07-01-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-02, 13:10 PM
Nope, my indicator light up when I pressed fn + esc, still works. I think the culprit is lenovo vantage latest update. Yes it didn't work after open lenovo vantage, so better don't open it if not needed. There are view user same device suffering from random black screen. CMIIW
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1 Posts

07-03-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-03, 1:24 AM

same here, but i still using the windows 1909 version. i didn't get the 2004 updates version and the backlit still doesn't respond anyway. Any suggestion?

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2 Posts

06-30-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-03, 3:29 AM

For Bios update, you can check and download from https://pcsupport.lenovo.com/id/en/products/laptops-and-netbooks/legion-series/legion-5-15arh05?linkTrack=Caps%3ABody_BrowseProduct&searchType=0&keyWordSearch=

 

The tech support from the Premium Care has called me and asked me to update the Bios to the latest version, EUCN19WW.  Still it does not solve the problem. They said they will discuss this issue with their support team to see if the problem is on the driver or something else. Not yet got a call.

 

 

 

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5 Posts

06-26-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-03, 6:16 AM

Thanks for the response. I'm glad it finally got into their ears. Now I guess all we can do is wait?

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2 Posts

06-30-2020

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Re:Legion 5-15ARH05 Backlit Keyboard problem

2020-07-03, 9:06 AM

They just called me and offering to replace the keyboard. Not sure if I should agree with this recommendation because as you and adityajazz said, I also notice that the backlight fn + spacebar hotkey stops working right after opening the lenovo vantage app/toolbar. So the issue must be from the system, not the hardware. 

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