The modified firmwares of DR900S and DR750S series(see Compatible Firmwares at the end of this article) have enabled the camera system to detect a malfunctioning SD card and data-writing error. With the new "SD Card Failure Alert", your dashcam constantly monitors the microSD card toverify if it is properly recording videos If the microSD becomes write protected or commonly termed as "bricked", a “Check SD Card” voice notification will play from the dashcam.
What should you do if your dashcam prompts you to check the SD card?
First, try formatting the microSD card using the Format button on the side of the dashcam (Press and hold the WiFi button for about five seconds until a voice prompt plays. Then, press and hold for another five seconds to proceed with the format process).
If that does not fix the issue, try formatting using the BlackVue Viewer for Mac/Windows (fat32). If the issue persists, contact our Techincal Support at firstname.lastname@example.org.
As part of the SD Card maintenance procedure, we recommend to format your SD card once every two weeks or once a month, depending on how intense you use the camera for recording.
DR900S: v1.008 and up
DR750S: v1.013 and up