Why Is My Logitech Ipad Keyboard Not Working. IOS v1351 on an iPad Pro 4th Gen -. See Connect and pair the Logitech Slim Combo keyboard to an iPad for more information.
Some users reported challenges working with their Smart keyboard and iPadOS. There could be a problem with the keyboard itself but chances are that the keys not working is related to the latest iPadOS update. If the iPad keyboard not working properly and even after changing some of the settings are not fixing the issue then quite possibly the iPadOS is corrupted or just some glitch on the OS is interfering with the keyboard function.
There are several reasons why the keyboard is causing the issue.
One of the most common reasons is some sort of glitch in the software that makes the keyboard unresponsive. Try testing the device on a different computer. Disable USB Selective Suspend. Sometimes your iPad may think there is a Bluetooth keyboard connected when it actually isnt so the onscreen keyboard will not show up.