Mercedes BEZN C6 MB SD Connect C6 DOIP Xentry Diagnosis VCI Plus Panasonic CF19 I5 4GB Laptop

For the customer’s problem below, don’t know how to use the Mercedes BEZN C6 CF19 laptop keyboard
Is it possible to get a new keyboard for the laptop? That is how rainstorm spell when using keys. Problem details: the customer pressed the button from number “1”- the letter ”M”, but the showing content isn’t matched with the content that the customer pressed, refer to the picture below.

Solution way below:
Press”NumLk” button to turn off it, which is a financial keyboard, resulting in appearing the number.
The light will extinguish when you turn off the button. Then everything is normal to work. Please refer to the picture below.