If your BlackVue dash camera is continually restarting after being powered on, it could be due to a faulty microSD card or there may be some file issues on the microSD card. Please format the microSD card completely and re-insert the card back into the camera. Unsure on how to format?
If this problem re-occurs and is not fixed by formatting the microSD card then please create a ticket so that our support staff can assist further.