Hello BJ Le, I am glad to help.(1) If Green WiFi Button is flashing, you can connect mobile phone to DVR via App, and format SD card from the setting; (2) You also can press Red Power Button once and it is solid red, then press Green WiFi Button for 8 seconds till Red Power Button off and on ; Please reference the links to format the SD card as below:
Hello BJ Le, I am glad to help.(1) If Green WiFi Button is flashing, you can connect mobile phone to DVR via App, and format SD card from the setting; (2) You also can press Red Power Button once and it is solid red, then press Green WiFi Button for 8 seconds till Red Power Button off and on ; Please reference the links to format the SD card as below:
https://www.dropbox.com/s/plj3kxl9m8a53gz/SDcard%20format.mp4?dl=0
I'll try this, that for the help!