The color of Ipad keyboard turns gray, so it can't be input.

First, check whether the keyboard is properly connected to the tablet. Commonly used keyboards include magnetic keyboard, Bluetooth keyboard and USB interface keyboard. Bluetooth keyboard needs to be connected to tablet Bluetooth to type.

Magnetic keyboard is usually the keyboard that comes with the factory, which is very easy to use.

If the tablet is directly plugged into the USB interface, you can use the USB interface keyboard. If there is no USB interface, OTG needs to expand the connection first. If there is no response after connecting, click the Sleep key or the number lock key, and the keyboard will be connected.