Disposal of old electrical & electronic equipment 
This symbol indicates that all electrical and electronic equipment included shall not be treated as household waste. Instead it shall be left at the appropriate collection point for the recycling of electrical and electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential negative consequences for the environment and human health, which could otherwise be caused by inappropriate waste handling of this product. The recycling of materials will help to conserve natural resources. For more detailed information about recycling of this product, please contact your local city office, your household waste disposal service or the shop where you purchased your MD400.
Emergency calls
Mobile Broadband Modems manufactured by Sony Ericsson do not support voice calls and should not be relied upon for essential communications.
Inserting and removing the SIM card – precautions against electrostatic discharge (ESD)
Do not touch the SIM card connectors. As a precaution, always make sure that the MD400 is already in your hand before you insert or remove the SIM card.
Power Considerations
In almost all cases, the MD400 works correctly when connected to one USB port, either directly or using the supplied extension cable. If you experience the problems listed below, your PC or USB hub may be failing to provide sufficient power to the MD400.
•The MD400 fails to start
•The MD400 is shown as Disabled in Device Manager
•Windows presents a message to say that the device is not operating
•The MD400 malfunctions when a connection is made
•Data transfers frequently stall
16 | Additional information |