Possible reasons for device restart:
1.Power supply problem
2.SD card compatibility issues
Investigation direction:
1.Inspection on power supply:
（1）Check whether the adapter is original and meets the power supply specifications of the product；
（2）Check whether the power supply has been modified and lengthened (extended)
（3）Check the power supply method. If it is centralized power supply, use relevant tools (such as a multimeter) to measure the power；
（4）Check whether the power supply at the power point is stable；
2.SD card troubleshooting:
（1）Check whether the SD card is a security-specific card and whether the relevant parameters comply with
（2）Check whether there is any improper use of the SD card, causing damage to the SD card (use a card reader to plug into the computer to verify)
Tenda Technology Tower ,#1001 Int' l E-City Zhongshanyuan Road,Nanshan District, Shenzhen China 518052
