The Data capability can be turned on/off via the Settings menu of the mobile device.
Go to Settings > Mobile Network:
Toggle the “Mobile Data” option.
Go to Settings > Connections > Data usage:
Toggle the “Mobile Data” option
Toggling the Data capability on the Mobile device itself does not have any impact on the Service Profile of a SIM card.
The Settings menu can differ per type of mobile device and/or version of the operating system of the mobile device, we recommend that you consult the manual of the mobile device for this.