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      Sometimes, the device takes a few minutes to lock in on the satellite signal, after which your true location will be shown.

     The WorldNav does not require maps to be transferred. All maps and POIs are already preloaded onto your device. To be informed of future updates please register at teletype.com/register.

     Insert the stylus pen into the RESET hole on the back your device and hold for 5-10 seconds, making sure you feel a noticeable “click”, which indicates the reset has taken place. Hold for 5-10 seconds. Click here for detail.

     See your Hardware User Guide for more information.

      Insert the new (updated) memory card provided to you by TeleType. Access the Navigation function and when the I Agree screen appears, rather than proceed with I Agree, press the SD Card Icon found in the bottom left corner. Follow the on-screen instructions to transfer history from a previous card to the new card. Note: History and Waypoint transfer is available for newer versions of the software such as ver N6.11068L and higher.

      The GPS reads the date and time from the satellite signal; if it is incorrect then the GPS is having trouble finding a signal. Make sure that you are outside with a clear view of the sky, away from larger buildings. Note: You can adjust the time manually by pressing Menu, then GPS Status, then pressing the Change button next to the Date/Time.

      Contact TeleType with serial number given and you will be assisted.

     In the Settings menu click Backlight, and adjust the brightness here. On the 7100 and 7200 models, click the Settings button on the right side of the device and click the Brightness and Contrast keys to adjust those settings. On the 7100 and 7200 models you can also click Settings, then AV Settings, then click on the second icon on the left side of the screen, and adjust the contrast.

     Click Settings, then Backlight; there will be the option of having the screen dim after a certain amount of time. Check your preferred option, or choose “Never” to have the backlight remain on at all times. On the 7100 and 7200 models, you can click on the SET button on the right side of the device and click the Brightness key; here there is an option to choose between “Auto” and “Manual” settings. Choosing “Auto” will dim the screen after a few minutes, and choosing “Manual” will keep it bright at all times.

      On the 7100 and 7200 models, press and hold the Menu button on the right side of the device. After a few seconds you should be taken to a blank white screen with a small target in the middle. Press and hold the target for a few seconds until it moves to the top left corner of the screen. Press and hold it again until it moves to the bottom left. Repeat this process to move the target to the bottom right, then top right corner of the screen. Press and hold the target one more time. If the target disappears and an “OK” message appears on the screen, touch the screen once to exit; the touch screen should now be working properly. If the target moves back to the middle, then repeat the process until you see the “OK” message. If you are having trouble, make sure the screen is wiped clean and the screen protector is removed.

     Eject the memory card from the side of the unit and check if the Storage Card is locked. Check the position of small yellow or white slider tab. If the small yellow or white slider on the side is moved in to “Lock” position, move the slider out of the “Lock” position, re-insert the card and try again.

     Each WorldNav GPS is equipped with an audio out jack that allows you to connect external speakers for boosting the volume. Be sure to use “Powered” speaker to obtain maximum volume. Also, the 7200 Model has an FM tuner which can be used to here the GPS instructions through your radio. A wide variety of speakers can be found at your local electronic store.

      No. Almost all of the functions of the GPS can be used without having to connect it to a computer. Updates are distributed via memory card sent through the mail rather than through the Internet. If you’d like to play music and movie files, then you may have to access your memory card through your computer.

     In order to upload Music, Videos, or Photos to the GPS, we recommend that you first make a back up copy of your memory card onto your laptop or desktop. You might also consider the purchase of a separate memory card for your personal media files. The navigation software must remain on the original memory card in order for the software to work properly. To copy your own files to your memory card follow these steps:

1. Remove the memory card from the GPS device by pressing it towards the device and it will then be ejected.
2. Insert the memory card directly into your PC through the SD card slot or a memory card reader, which can be purchased at any electronics store.
3. The computer will recognize the memory card as a storage device. When card is inserted, a window will come up with different folders, (Maps, Movies, Music, Picture, and TTWorldNavigator).
4. Double click on the folder that would apply to your files.
5. Simply drag and drop your desired files into the folders. (Please see system specifications to check which file formats are supported).
6. When you complete the file transfer, simply insert the memory card back into the device.
7. You are ready to navigate with movies, music, and pictures. *Caution* DO NOT open the folders of the actual mapping software as it may corrupt files and cause the navigation software to stop working.

     To pair your GPS and your phone using Bluetooth technology, press Bluetooth on the main menu. Before trying to connect to your phone, you must enable Bluetooth option on your phone (see your phone manual). Once you enable Bluetooth on your phone, go to your GPS Bluetooth screen and press on the icon of a phone with a magnifying glass. Unit will then try to pair the GPS to your phone. On your cell phone, you will find a window with name “GPS” in it, press “Connect”. If your phone asks you to input a password, type “1234”. To check if you are indeed connected with your phone, click on the icon of an address book with a magnifying glass, which will show the model of your phone.

     Yes, you can use any low capacity memory card of your choice to store your music and videos. Reminder, be sure to keep a copy of the WorldNav memory card on your laptop or desktop hard drive for safekeeping.

     Although the GPS device is powered On, the internal GPS may have inadvertently been turned Off. The GPS can only lock into position when the communication settings are set properly. Touch the screen anywhere. Press the Menu button, press the white right arrow twice, you will then reach the GPS Status page. Click on the “GPS Status” icon. Notice the red indicator at the bottom of the screen. If the indicator is solid then the GPS is not obtaining a satellite signal. Use the white arrows to set the proper choices as described below.
     WorldNav 7” GPS devices should be set to Com Port = 2, Baud = 4800. The WorldNav 5” GPS should be set to Com Port = 7, Baud = 4800. The WorldNav 3.5” GPS devices do not need to be set.

     Some of the model 7100 devices will show the wrong date even after the device is locked into position. Rest assured the GPS navigation function is not affected. If desired, you can install a firmware update which will solve the issue.

     Due to increased national security concerns, the GPS signal is often scrambled or shut down near airports and military installations.

     Yes, you can reset the GPS to factory settings. Please click here to follow instructions.

     Your GPS may have frozen while in Sleep Mode. Reset your device by pressing and holding the Reset button on the back of the device for 20-30 seconds until the screen powers back on. It is a good idea when you are finished using your GPS to power the device completely off instead of putting it into Sleep Mode, as this uses up a lot of the internal memory.

     The transfer function is intended to copy both My Points and History, if your History file has been deleted, the transfer may fail. Solution: Create a History entry. Search for Boston, MA, select the result from the Find Results. Now you can use the transfer function as originally intended.