Hi, ive installed the K2 succesfully now. Updated the the firmware and using FAT32 as standard format on my 256G sd-card. I also bought a powerhub and both were connected but i got corrupt files because the powerhub shuts down faster than the K2 does. I hooked the K2 directly to the battery and tested again, once i try it on dashcam viewer i get the same message that my codec is probably wrong. My computer runs on 64bit and Win10. I am about to rip the K2 out and dump it on the street.