my 70mai works well about two months. Then yesterday starts to indicate an issue with SD so, I formatted SD card.
Now the cam after power on ask to connect iPhone and do the authorization (blue light blinking). I do it but after power off and on camera again ask for authorization. Cam forgot that has been authorized already.
Also camera forget all setup what I did.
So now before I drive my car I must connect my phone with cam and then the light change from blu to green and starts to record.
I tried factory reset several time with new authorization but nothing help.
next knowledge battery is ok - I can record video without powering - with powering( always connected to power source) then I press power button off and immediately on and then the camera is again not authorized blue blinking and asking to be paired with a phone and all setups are gone