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08-02-2020

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Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-02, 0:30 AM

So,  I deleted the keyboard drivers, rebooted, and the backlight works for some time, then stops working.

 

No more Fn Spacebar control.

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Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-20, 8:31 AM

Hi all,

 

the BIOS fix for the 15ARH05 model has been released today. You can download the new BIOS version EUCN22WW here:

 

https://pcsupport.lenovo.com/sk/en/products/laptops-and-netbooks/legion-series/legion-5-15arh05/downloads/driver-list/component?name=BIOS%2FUEFI

 

Best regards,

 

Juraj
German, Czech & Slovak Community Lead


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13 Posts

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Re:Lenovo Legion PF2D0SKV keyboard backlight stops working.

2020-08-02, 13:07 PM

I see there is another thread about keyboard backlight stops working issue.  Goto that thread for more information

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Re:Lenovo Legion PF2D0SKV keyboard backlight stops working.

2020-08-02, 23:39 PM
I removed the lenovo vantage app. If you start this up, it will kill control to the backlight.
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Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-03, 16:17 PM

Unfortunately, the keyboard backlight "stops working" issue can be disabled by some other system process.

 

It appears that the the Fn - Spacebar control stops working after some time.  Not sure what exactly is the source of the issue.

 

This happens even after the vantage app is removed.

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  • Message 5 of 15

Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-03, 16:18 PM
The only way to get the Fn- Spacebar controls working is to reset the computer
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9833 Posts

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Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-14, 8:55 AM

Hi all,

 

we have now released a new BIOS Version for the AMD Model which fixes the symptom. The new BIOS Version can be downloaded under the following link. If someone is still experiencing the issue with the Intel Model, this BIOS fix was released a week ago and can be downloaded here.

 

Best regards,

 

Juraj
German, Czech & Slovak Community Lead


EN : Welcome to the Community! Have you already participated in the forum survey? Please, let us know what you like about our forum and what we can improve. We listen to your feedback!

DE : Willkommen in der Community! Hatten Sie bereits an der Foren Umfrage teilgenommen? Wir benötigen die folgenden Informationen. Wir hören zu und lesen Ihre Kommentare gerne!

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Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-16, 19:22 PM

There is no new bios update for the 5-15ARH05, only the 5-15ARH05H.

 

I tried both BIOS updates listed on the link and only the update for 5-15ARH05 works for me, but apparently is the same BIOS version I have.

 

Therefore, there still is no fix for the keyboard back light issue.

 

More info about this issue:  The keyboard back light  definitely stops working when coming out of sleep.  

 

Like me, for those that need this backlight, it will work for a while if you reset the computer.

 

 

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9833 Posts

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Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-18, 11:19 AM

Hello Dr. Tech,

 

this is true, the 15ARH05 BIOS fix is still pending. As soon as the BIOS fix will get published, I will notify you in this discussion.

 

Best regards,

 

Juraj
German, Czech & Slovak Community Lead


EN : Welcome to the Community! Have you already participated in the forum survey? Please, let us know what you like about our forum and what we can improve. We listen to your feedback!

DE : Willkommen in der Community! Hatten Sie bereits an der Foren Umfrage teilgenommen? Wir benötigen die folgenden Informationen. Wir hören zu und lesen Ihre Kommentare gerne!

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9833 Posts

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  • Message 9 of 15

Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-20, 8:31 AM

Hi all,

 

the BIOS fix for the 15ARH05 model has been released today. You can download the new BIOS version EUCN22WW here:

 

https://pcsupport.lenovo.com/sk/en/products/laptops-and-netbooks/legion-series/legion-5-15arh05/downloads/driver-list/component?name=BIOS%2FUEFI

 

Best regards,

 

Juraj
German, Czech & Slovak Community Lead


EN : Welcome to the Community! Have you already participated in the forum survey? Please, let us know what you like about our forum and what we can improve. We listen to your feedback!

DE : Willkommen in der Community! Hatten Sie bereits an der Foren Umfrage teilgenommen? Wir benötigen die folgenden Informationen. Wir hören zu und lesen Ihre Kommentare gerne!

CZ/SK : Vítejte v Komunitě! Už jste se zúčastnili našeho průzkumu fóra? Potřebujeme následující informace. S radostí posloucháme a čteme vaše komentáře!
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13 Posts

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  • Message 10 of 15

Re:Legion 5-15ARH05 (Lenovo) - Type 82B5 keyboard backlight stops working after starting vantage

2020-08-21, 3:50 AM

After loading the new BIOS, the backlight now appears to consistently work, even through sleep cycles.  And it will even remember the dim state that was used

going into the sleep cycle.   YAY!

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