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Jul 14

Laptop will not read files on the SD card

10 comments

K2 system with a 256g SanDisk Extreme U3 A2 card in it and have upgraded the firmware to the V57 version. The device seems to be recording properly to the SD card because when I use the app the files show up and can be downloaded and played. However, when I insert the SD card into my laptop (via SanDisk adapter) I get a dialog box that says I need to format the card before I can use it ... if I cancel that dialog I will then get a dialog box that says that the card is inaccessible and does not contain a recognizable file system ... The app wifi is too slow to download hours of video so how do I access these files and download?

Jul 14

What operating system are you using?

Jul 14Edited: Jul 14

Windows 10 on the laptop. I also get the same set of error messages when I connect to the dvr with the usb cord ...

Jul 15

Have you formatted SD via App card before recording?

 

Do you have other SD card to try? just like 32GB.

Jul 15Edited: Jul 15

I did format the card via app yes.

 

I have tried 3 different card readers, all give the same message.

 

I should also note that my computer reads other random SD cards I own just fine via any of the adapters I have so it's not my laptop or the adapters.

 

The Sandisk card was working fine when first inserted, seems only after getting 10+ hours of vid on it that it seems to have started to malfunction.

 

Of note ... when I bought the K2 I also bought a new Samsung 256g U3 A2 card (this is a different card than the one I am using now) that initially worked just fine, then after a couple of rides I could not retrieve the video via computer or the app ... I assumed a faulty card and returned it to Amazon ... I then bought this new second Sandisk 256g card ... now that I have a few rides on it again can not retrieve video, the only difference between this Sandisk card and the old Samsung card is at least that app will read the Sandisk card, where with the Samsung card the app would not read it at all.

 

I am starting to think that the K2 is somehow corrupting cards when they start to get a load of files on them ... yes I will try another third card, this time a 128g card.

 

Somehow these cards are either getting corrupted in the K2 or I have had the unlikely unfortunate luck to get two faulty cards ... however, as stated both cards were working just fine when I inserted them, both readable on my computer and the app, then once they get a significant amount of files on them they stop being readable ... so I have to believe something is happening to them in the K2 ...

Jul 15

 

...now that I have a few rides on it again can not retrieve video

That's interesting. How much GB (or Videos) are on the card now? I filled my 128GB Card some month ago and had no problem reading it. But that was before V52 and the new EXFAT format. The max amount of data I recorded with the K2 on EXFAT is something around 60GB.

 

So the K2 still can read the videos and transfer them by wifi, but the card is inaccessible on your laptop, if there are some hours of video on it. Correct?

 

That could mean, that the K2 does not follow the EXFAT specifications in all cases. I will do some tests with my 128GB card to see if I can reproduce it.

Jul 16

On the 256g card I would estimate probably 10-15 hours of video ... so at least half full but not completely I wouldn't think ...

Jul 16

Bit of an update ... I tried a SanDisk 128 gig card ... went on a 6 hour ride yesterday ... seems my laptop recognizes the files and will read that card just fine. I have successfully downloaded the files to my laptop and they play fine. So, maybe the K2 is just not working with 256gig cards, perhaps there is a firmware update planned that will address the issue? For the time being, I will just use the smaller card (128g) however, that does't address the fact that I have several hours of video on the 256g card that I want (two great trips) ... I am attempting to use data recovery software to see if I can recover these ... if not I guess I'm just out of luck. BTW, the 6 hrs of video used about 50% of the card capacity.

Jul 16Edited: Jul 17

That's the same I got here. Put my 128GB card in my spare K2 ten hours ago and have no problem in reading the SD Card (and the 10 hour videos of recording my desk).

Before firing up some data recovery software at the card, you can try to install a Linux in a virtual Machine (e.g Oracle Virtual Box) and check if it can read the card. Often enough I found that Windows is bitchy when it is about memory cards.

Jul 17

Typo I think "to problem" ... was that "no problem" or "a problem"?

 

Never done the Oracle Virtual Box trick, will have to research, thanks!

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