Nevir NVR-TAB9 S2 User Manual page 80

IV. Troubleshooting
1. What if the device is abnormal during operation?
Answer: 1). Reboot the device to see if it works OK.
2). Charge the device by the charger to activate the battery. Make sure it has
power before you operate it.
3). It is suggested to upgrade the OS of the device by professional.
2. Why the standby time is so short sometimes?
Answer: the use time of the battery is all depend on the temperature and use instance. If
the temperature is too high or too low, the use time of the battery might be effected. It is
suggest using the device in normal temperature.
The using time is also affected by increased volume and frequently operation.
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