I have bought the Viofo 129 Duo.
Because Viofo had posted somewhere in this forum that the device has got unofficial support for 512 Gb cards, I have also purchased a Sandisk Ultra microSDXC, UHS-I, A1 with 512 Gb.
The card was sold and shipped directly by Amazon. H2testw shows that it really has 512 Gb. It measures a speed of about 20 MByte/s. Connection of the SD card reader to the PC was done with a USB 3.0 cable.
Before inserting the card into the dashcam for the first time, it was formatted on a Mac to FAT32 format.
When the card is used with the dashcam having Wifi turned off:
The dashcam keeps asking to format the SD card. It doesn't matter if you select "Ok" or "Cancel", in both cases it will keep asking again to format the SD card.
When Wifi is turned on:
The dashcam does not ask to format the SD card. However, if you press the record button, it tries to record for a second. Then it exits record mode without a message, and no file is written to the SD card.
I was able to perform a firmware update from V1.9 to V2.1. The updated firmware file had been copied on a PC to the SD card. So it looks like the dashcam can read from the SD card, but not write to it.
However, both firmware versions show the same behaviour regarding the SD card.
Is there something wrong with the SD card?
Or is 512 Gb support not ready yet?
Because Viofo had posted somewhere in this forum that the device has got unofficial support for 512 Gb cards, I have also purchased a Sandisk Ultra microSDXC, UHS-I, A1 with 512 Gb.
The card was sold and shipped directly by Amazon. H2testw shows that it really has 512 Gb. It measures a speed of about 20 MByte/s. Connection of the SD card reader to the PC was done with a USB 3.0 cable.
Before inserting the card into the dashcam for the first time, it was formatted on a Mac to FAT32 format.
When the card is used with the dashcam having Wifi turned off:
The dashcam keeps asking to format the SD card. It doesn't matter if you select "Ok" or "Cancel", in both cases it will keep asking again to format the SD card.
When Wifi is turned on:
The dashcam does not ask to format the SD card. However, if you press the record button, it tries to record for a second. Then it exits record mode without a message, and no file is written to the SD card.
I was able to perform a firmware update from V1.9 to V2.1. The updated firmware file had been copied on a PC to the SD card. So it looks like the dashcam can read from the SD card, but not write to it.
However, both firmware versions show the same behaviour regarding the SD card.
Is there something wrong with the SD card?
Or is 512 Gb support not ready yet?