HIKVISION DS-8104HMI-A User Manual page 63

255.) If it still does not work after repeating many times. Please check the reasons:
1. Check the battery's positive and negative polarity;
2. Check the battery's power;
3. Make sure the remote controller is not tampered;
4. Check around and make sure there is no fluorescent lamp used.
After exclude all of above reasons, please change a new remote controller; if it still does not work, please contact the supplier.
After exclude all of above reasons, please change a new GPS module; if it still does not work, please contact the supplier.
Note: In caves, tunnels and some other environments, there is no GPS signal.
Q: Why dial-up is failed?
A: 1. Please make sure the device have wireless module inside;
2. Please check the antenna is connected correctly and vertical;
3. Please check the status of SIM card, make sure it can work for dial-up;
4. Please check the module selection and corresponding parameters in "Mobile setup"->"Dial up setup";
5. The weak 3G signal may also cause dial-up failure, please make sure the parameters are correct, reboot the DVR and try again.
User Manual of DS-8104HMI-A(/XX) Series Mobile Net DVR (V1.20.00)
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