Hello,
we have a problem of keyboard with many Dell Latitude e3540 .
Some keys randomly stop responding .
We have updated the firmware to version A08 but unable to fix it.
Also reinstall the driver keyboard controller with the same result .
The only thing that can solve the problem was momentarily disconnecting and reconnecting the keyboard . Likewise, the problem usually returns .
The local support Dell keyboards we changed several times but the problem persisted.
Someone knows how can be solved ?
Thank you very much ,
greetings .
Heber.