Press the reset button to turn the power on. For more information on resetting, see "Reset"
Check the battery level.
When you cannot connect to a wireless network
Check the Wi-Fi environment.
If your device cannot connect to Wi-Fi, press the reset button and try connecting again.
When the screen is trapezoid
Adjust the location so that the screen and the product's projection light are perpendicular. If the product is not operating or it does not power off
Press the reset button for a second. For more information on resetting, see "Reset"
When you cannot play a video after a DLNA connection
Check if the media player of your smart device supports DLNA.
Check the video format as it may not play due to the incorrect video format.
If it does not play due to the incorrect video format, use a codec converter to convert it into a general format.
Other
You must use an authentic charger with DC 5V, 2A. If you do not use an authentic charger, it won't charge correctly and may cause problems in features.