TomTom is a company that produces global positioning systems (GPS), including the TomTom One. The TomTom One is an entry-level model and while it provides maps and driving directions, it doesn't recognise voice commands. If you recently purchased a TomTom One, you need to install the memory card before you can use the device. The memory card contains maps that are used to provide you with driving directions. Fortunately, it is easy to install.
Make sure the TomTom One is turned off. If it is on, press the power button on top of the device until the screen turns off.
Hold the TomTom One with the bottom facing you. The bottom has slots for the USB connector, power cord and the memory card.
Hold the GPS device in one hand and pick up the memory card you want to install. The memory card is shaped like a rectangle with one corner cut off diagonally. It has a label on the top side. On the bottom side, at the end with the diagonal corner, it has gold connectors.
Hold the memory card between your thumb and index finger. Position it close to the slot on the device, so that the notched end with the connectors is closest to the slot and the connectors are facing the bottom of the device. Then gently push it into the slot. You should hear the card click into place once it is completely inserted.
Press and hold the power button on top of the GPS device for two seconds so it will boot up. If this is the first time you have used the TomTom One, it may take up to 20 seconds to boot while it reads the memory card you installed. Now that the memory card is installed, the GPS will be able to use the maps installed on the card to give you directions.
Update the maps on your TomTom One memory card at least once a year to make sure you have the most recent maps. If your maps aren't updated, some directions you receive may be inaccurate.