The embodiments of the invention disclose a scanning type backlight module and a display device. The modified ranging request includes a header, a management message header attached to the header, a management message payload attached to the management message header, and a CRC attached to the management message payload. The support supporting components are related to powering or controlling the electric actuator, said components are exposed for servicing in the lowered position. A first message is transmitted to a mobile device of a user associated with the second electronic device for a permission to activate the subscribed service on the second electronic device.