Hi, thanks for reading. I just bought the s1 4k and I just realized this unit does not have battery/supercap so when it lost power it just shuts down. I am a little confused since I only plan to use it with cigarette 12v power and what if I got into an accident that the power got cut off. Do I lose the actual moment of truth then it matters the most?
I was doing a testing near my desk with usb c power plugged into its data/power port, I noticed that each time I pull the power plug, and then plug it back on later, it says the SD card needs to be formatted. So I took the card out on my PC and I saw they have a tmp file in the INF folder, that I don't know what to do with it...
That feels like a real bummer...
Hi This is James at VUEROID.
Thank you very much for purchasing the S1 4K.
Let me explain this part in a bit more detail.
Yes, that is correct. The S1 4K does not use battery components such as a super capacitor. Depending on the quality of the component, they can negatively affect thermal characteristics and are also difficult to use permanently over a long period of time, so we try to avoid using them whenever possible. (A very long time ago, Vueroid did develop models using batteries as well.)
The Vueroid S1 4K uses our self-developed dashcam-specific file system called TFF.
It is essentially a modified form of the standard FAT32 file system optimized specifically for dashcam usage.
To explain it simply, when an SD card is first inserted into the VUEROID S1 4K and the device boots up, formatting is performed. During this process, temporary files matching the size of 1-minute video clips are pre-created across the SD card according to its capacity.
After that, the recorded footage is written by filling these pre-created temporary files.
Because of this structure, even immediately after formatting — without recording anything at all — you will notice that the SD card already appears almost full.
In general, when dashcams use FAT32 as the storage structure, files gradually become fragmented over time as usage increases. (The same thing happens with normal PC HDDs as well.)
Performance gradually degrades, and the lifespan of the NAND flash inside the SD card is shortened more and more. That is why most dashcam brands recommend regular SD card maintenance and formatting.
With VUEROID’s TFF, however, you do not need to worry about those issues at all. It is designed to be format-free, and through journaling, file corruption does not occur. In addition, it has the effect of extending SD card lifespan by at least 30% or more.
So this is really not something you need to feel disappointed about, and I would appreciate it if you could reconsider your impression of this aspect.
And to share one more piece of good news: TFF will be upgraded further in the next firmware update.
Until now, the last file at the moment power was cut off was designed to be recoverable after rebooting or through the VUEROID PC Viewer.
With this upcoming update, even without any battery component, the final file will now be saved in a fully playable state immediately.
We hope you will look forward to the next firmware update and verify this improvement once it becomes available.
Have a good day~
