If your ATU-620 seems to be failing, before contacting CalAmp about returning it, first try the following troubleshooting steps to make sure that something else other than the hardware isn't causing the problem:
- Make sure that the vehicle has a clear view of the sky.
- Open the device to check the following:
- Verify that the gasket hasn't been damaged, placed incorrectly, or removed — that is, ensure that it has been correctly installed.
- Try swapping out the six AA batteries for new ones. Wait a few minutes after inserting them for the device to report to CalAmp K-12.
- Verify that the gasket hasn't been damaged, placed incorrectly, or removed — that is, ensure that it has been correctly installed.
- Verify that the ATU-620 is reporting to CalAmp K-12:
- Open the CalAmp K-12 mobile app, which is available in Google Play or the App Store, on a mobile device. In the vehicle list, tap the vehicle name. (See Tracking a Vehicle for more details.) If the ATU (asset tracking unit) is reporting live, a map will appear showing the bus's location. Below the map, check the number to the right of Sats (the GPS satellite count); make sure that it is 5 or higher.
Note: You'll need to log in to the app using a CalAmp K-12 login, not a punch ID. - On a computer, use CalAmp K-12 (https://login.synovia.com) to check whether any events are being reported for the vehicle and that it appears in its current location on the map. (See Tracking a Vehicle for more details.)
- Open the CalAmp K-12 mobile app, which is available in Google Play or the App Store, on a mobile device. In the vehicle list, tap the vehicle name. (See Tracking a Vehicle for more details.) If the ATU (asset tracking unit) is reporting live, a map will appear showing the bus's location. Below the map, check the number to the right of Sats (the GPS satellite count); make sure that it is 5 or higher.
- If step 3 shows that the bus still isn't reporting data to CalAmp K-12, try swapping out the nonfunctioning ATU for a known working ATU, just to check for certain whether the device is the problem.
If you've tried all these troubleshooting steps and the device is still malfunctioning, you can open a ticket at CalAmp K-12 Support Portal. (You can find more details at Returning Hardware and Obtaining a Replacement [Performing an RMA].)