If your Micronet tethered MDT (mobile data terminal) seems to be failing, before returning it to Synovia, first try the following troubleshooting steps to make sure that something else other than the hardware isn't causing the problem:


  1. Check for GPS data:
     
    • Make sure that the vehicle has a clear view of the sky.
       
    • Check that the vehicle ignition key is in the ON position.
       
    • Verify that the timestamp is displayed onscreen.
       
  2. If the timestamp isn't displayed, check the following:
     
    • Verify that the cable is securely connected between the LMU (location messaging unit) and the MDT.
       
    • Verify that the cable leads into the correct Aux port as defined in the script (usually Aux 2). (If the LMU is a 3640, this will be Aux 1.)
       
    • Verify that the antenna is securely connected to the LMU and that it has acquired COMM.
       
    • Verify that the LMU is getting power.
       
    • Verify with your Synovia project manager that the appropriate MDT license was activated for your account.
      Note: License changes that affect the peripheral type will take effect on the next nightly reboot.
    • Verify with your Synovia project manager that the peripheral type/ESN for the vehicle is accurate and set to Micronet Tethered.
       
    • Verify that the 5pin-to-serial connection is set to 12V.
       
    • Verify the 5pin-to-serial connection by replacing it with a known good connector.
       
  3. Reboot the MDT by pressing and holding up down and the red decline button at the same time.
     
  4. Verify that the MDT is reporting to Synovia. Log in to Synovia on a computer or mobile device and see if events are being reported for the vehicle and that it appears in its current location on the map.
     
  5. Try swapping out the nonfunctioning LMU for a known working LMU in the vehicle.
     
  6. Try swapping out the nonfunctioning MDT for a known working MDT in the vehicle.


If you've tried all these troubleshooting steps and the device is still malfunctioning, follow the RMA (return merchandise authorization) procedure in Returning Hardware and Obtaining a Replacement (Performing an RMA) to return it and obtain a replacement.