06-22-2019 07:51 AM
but I have forgotten and closed the app
then my GoPro don't turn on, when I click the button it starts to record some vid, when I cancel the recording the camera just turn off by itself
06-23-2019 02:31 AM
You might have the Quik Capture enabled. Try this. While your camera is off, press the side (Mode) button to power it on, then press the top (Shutter) button to initiate a recording. Then press the shutter button again to stop the recording. If you do it this way, you will be able to power the camera on and go through the settings menu/preferences.
Please read on the link above to learn more about such feature. Feel free to post back for any concerns or questions.