1. kd8ati's Avatar
    Hello All,

    Just rcvd the 256GB SD Card today for my new Galaxy S8+. When I transfer stuff from my phone sd card to my computer I always use the SD Card to USB adapter because it is always much faster. So today I took out my old SD Card plugged it in to the pc using the adapter and copied everything over to the pc no problems. When I plug in the new 256GB SD Card windows gives me the middle finger saying it needs to format the SD Card. The SD Card has already been formatted by Android. If I format it on the computer it only sees 14.5GB of said 256GB card, regardless of what program I try and use, while the phone itself sees the entire card. I am able to put the card in to the phone and transfer files from the PC to the card (in the phone) however it wont transfer the .android_secure folder. Anyone have any ideas on how to fix this?

    Thanks!
    05-02-2017 07:15 PM
  2. t11rmh's Avatar
    Does your USB adaptor say it takes sdxc cards?

    Also, what version of Windows are you using on your pc?
    echo_808 likes this.
    05-02-2017 11:06 PM
  3. illdini's Avatar
    05-03-2017 01:20 AM
  4. echo_808's Avatar
    Yeah your USB adapter might not support it.
    05-03-2017 04:24 AM
  5. kd8ati's Avatar
    The adaptor does not specifically say if it supports sdxc cards, though I can say it worked fine with the old 32GB sdhc card. I did try it with a different adaptor (though still a fairly old adaptor) and it did not work with that as well. If it were an adaptor not liking sdxc, wouldn't be an all or nothing deal as oppose to seeing a small chunk of it?

    I am using windows 7 pro, though I have tried, using the same adaptor, on Windows 8.1 with the same results.

    It is a real SD card. It is one I got as part of the $99 fully immersive deal Samsung offered as part of getting the S8. It is a Samsung EVO+.
    05-03-2017 06:07 AM
  6. Ranny99's Avatar
    What happens if you connect the phone to your pc, can you transfer that way?
    Ruikee likes this.
    05-03-2017 07:01 AM
  7. echo_808's Avatar
    Here's what I've found. Just wanted to verify.

    Usually the reader has all the logos on it. See if there's a SDXC logo.

    As for why it reads only a certain size...not sure. Does sound weird.

    Haven't tried to install my 256 card yet. Planning to do it this weekend.


    05-03-2017 08:24 AM
  8. kd8ati's Avatar
    Yeah if I connect the pc to the phone (with the 256GB card installed) it can read/write to both internal storage and the card with no issues, and can see the entire card. This is something I prefer not to do as it is much slower then plugging the card directly in to the pc. Not only that but I can not get my .secure_android folder copied over as Android blocks it. It does have the sdxc printed on the card. I can format the card to both FAT32 and exFAT... both only show 14.5GB total storage on the card. I would like to think im pretty knowledgeable when it comes to PC's but this has really got me pulling my hair out. :\
    05-03-2017 03:25 PM
  9. kd8ati's Avatar
    So I just wanted to update everyone that I finally found a solution. It appears as though the simple micro SD to usb adapter did not support this memory card... possibly due to it being sdxc?? So I went out and purchased an updated all-in-one usb 3.0 SD card reader and it is now reading the card without an issue. Thanks echo_808 for the suggestion, even though I was skeptical at how two cards that I thought had the same pinouts don't both work in the same usb adaptor.
    echo_808 likes this.
    05-03-2017 10:22 PM
  10. echo_808's Avatar
    Well good to see that was the fix.
    05-05-2017 03:13 PM

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