If you're having trouble charging your Mars 3, please try the following troubleshooting steps:

1. Ensure that the plug is properly inserted into the socket and that the adapter cable is properly connected. If the issue is with the socket, try using a different one. If the issue is with the adapter, try unplugging it and plugging it in again.

2. Plug and unplug the adapter and check if the charging indicator light is on. If not, try using a different power adapter to recharge it.

3. If the battery is fully depleted, charge the device for 15-30 minutes to see if it will turn on.

If this issue persists, please contact us with a short video showing the issue if possible. Additionally, please mention that you have already tried the listed steps to avoid being asked to repeat them by our team.