1. The mobile phone is close to the device 2. The […]
Why does it take half an hour for a mobile phone to receive a push message before it arrives?
1 The phone network is abnormal. After the mobile […]
TF card video cannot be played back?
Please check the reason according to the following […]
What should I do if the camera network configuration fails?
Please check as follows: 一. Check the network 1. P […]
