Dahua Mobile DVR Series - Troubleshooting Connectivity and GPS

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There are following possibilities:
 You have not installed the dial module or your installation is not right.
 Please make sure you have inserted the card.
 You have not installed the antenna or the connection is not sound.
 The center platform configuration is not right or the registration is not effective.
 The cell phone remaining sum is not sufficient.
 Signal is too weak.
 SIM card does not support corresponding service.
20. 3/4G platform is offline
There are following possibilities:
 Refer to the above item to check 3G/4G dial function is OK or not.
 Check local auto register function setup.
 Check server setup.
21. No GPS data
There are following possibilities:
 Check GPS antenna connection
 GPS antenna environment is free of block object.
 Vehicle data module is running or not.
Daily Maintenance
 Do not allow other objects falling into the DVR (such as water), it may result in device
malfunction.
 Always follow the transportation instructions. Do not transport the DVR upside down.
 Please pay attention to the cable connection. The improper connection steps may result in
device malfunction or damage.
 Please make sure all the external cables have soundly earthed.
 Before you connect the power cable, please make sure other cables have properly
connected.
 Use the cable strap in case there is short circuit, electric shock.
 Please keep the power cable neat in case it obstacles the driver or the passenger.
 Please remove the negative end (-) of the connection terminal before you configure the cable.
 Please unlock the key before you draw out the HDD box. Otherwise it may result in device
damage.
 When washing the vehicle, please keep the DVR away from the water. Otherwise it may
result in short circuit, fire or device malfunctions.
 Please make sure the DVR is away from the direct sunlight or other heating sources. Please
keep the sound ventilation.
 Please use the brush to clean the board, socket connector and the chassis regularly.
 The DVR shall be soundly earthed in case there is audio/video disturbance. Keep the DVR
away from the static voltage or induced 143H143Hvoltage.