I have a Lexar High Endurance 64GB Class 10 in my Viofo A119. Im having errors using mass storage on PC using the OEM wire provided in the box, nothing is read under File Reader. Frequently I also have "Please format MicroSD", and i've tried formatting off PC and off the camera itself and it still shows once in a while. My firmware currently is "A119_161216_V2.01" . Thanks for your help!