When I on v3.1, first time discovered the unit it hang, the LCD screen was flickering but not power cycling. Just hang.
Then I performed:
1. Power cycle multiple times with SDcard on it, the screen flicker still there and still hang on main menu, no indication of recording.
2. Power cycle without SDcard, the screen not flicker but working and response whenever I pressed the buttons, but not functioning when I inserted the SDcard back in it power cycle itself, no screen flicker, but hang on same main menu screen, no indication of recording.
3. Power off the unit, wipe off the SDcard, put back into the unit, no screen flicker, hang on same main menu screen, no indication of recording.
4. Flash using v3.3 now.
If I can recall when I use v3.3 I have same issue with v3.1, so now i'm back to v3.3.
I not sure if this the firmware issue on v3.3 or v3.1.
The firmware loader and instruction should I follow from this site?
http://support.viofo.com/support/solutions/articles/19000019600-viofo-a119-car-dash-camera-firmware
The firmware loader it seem to be v1.1 I use this when i'm on v3.3?