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dell e6420 brightness keys not working

I installed windows10 pro and also updated all driver from dell,everything working perfect but brightness keys not working,when i restart the laptop that time working brightness keys and when i shutdown and start the laptop that time not working brightness keys only working when i restart the system how can i fix it.anybody help me

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Community Manager
Community Manager

Re: dell e6420 brightness keys not working

Hi naveensurya325,

Thanks for posting. Apologies that your system is not performing as expected.

Here is information from the Dell knowledge base you may find helpful:

Dell Latitude E6420 Windows 10 Driver Installation Guide

As the article states:  If specific Windows 10 drivers are not available on Dell Support website, you can try to install the Windows 8 / 8.1 compatible driver.

If you need additional assistance, please contact me privately. Be sure to include your personal information and your computer's service tag number. Thanks.

Dell-Robert P
Social Media Support
To help us troubleshoot, please send us the Dell service tag number via a private message
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