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2 Posts

07-21-2021

Mexico

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Keyboard of L340-15API Laptop (ideapad) - Type 81LW deactivates on a BIOS level after Windows Update

2021-07-21, 21:04 PM

I have an issue with a Laptop L340-15API Laptop (ideapad) - Type 81LW, after an update Today 7/21/2021, the keyboard deactivated on its own, the BIOS no longer detected it and would display a message 'No Keyboard available' upon turning on the computer. Unfortunately, I do not have the exact version of the update, because I rolled back the operating system, to a previous date, through the System restore program included with Windows, it was restored to a previous time, 7/16/2021.

 

Previous to this, I attempted checking if there were any new BIOS updates, that could solve this issue. But the version of the BIOS is this one: ARCN37WW which was  downloaded from here: laptops and netbooks :: ideapad l series laptop :: l340 15api :: 81lw :: 81lw001xus :: pf1dnhma Lenovo PC Support - Lenovo Support US

 

The Windows build with which the keyboard still works is Windows 10 Home , Version    20H2  OS build 19042.1083 and the Windows Feature Experience Pack 120.2212.3530.0

 

My concern is that newer updates could make the hardware not work again. Is there any report of specific updates from Windows 10 Home leading to this?

 

Attached file is the list of the latest updates installed on the system.

 

Thank you for your time.

 

 

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2811 Posts

03-11-2020

Greece

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Re:Keyboard of L340-15API Laptop (ideapad) - Type 81LW deactivates on a BIOS level after Windows Update

2021-07-22, 10:18 AM

Hi ERoldan,

 

Welcome to the Community Forums.

 

 

Windows unfortunately does not announce when, what or where there will be a next update, and this has been procedure for a long time. All we can do is wait and hope they fix the problems down the line, while Lenovo also most likely works either in conjunction with Windows or on their own to release a driver to be compatible with new updates.

 

Regards

 

Voithos



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1 Posts

07-21-2021

India

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Problem with Fan

2021-07-22, 12:03 PM

Recently I bought Lenovo IdeaPad Slim5i(15 Intel) but my issue is with the sound coming from the fans. The sound is OK when I use laptop for internet surfing. When the speed of the fan increase, the sound ends up being even more high pitched. Is there any solution for this?

 

 

Thanks In Advance

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2 Posts

07-21-2021

Mexico

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Re:Keyboard of L340-15API Laptop (ideapad) - Type 81LW deactivates on a BIOS level after Windows Update

2021-07-22, 13:25 PM

I understand, thank you for the reply. I was hoping some Lenovo representatives knew by chance what exact update was causing the issue, then not download it for the time being, or waiting for a patch to be released. 

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