Help with 128GB card!

[MyDsiXlIsStuckOnPictoChat]

So one day i bought a 128 GB microsd card from amazon, when it came, i was very happy about upgrading my 3DS xl's storage to a much bigger one. It was until i finished formatting the card to fat32 via guiformat and then putting my old files back into the 128 GB microsd card when this happened
The 3DS said that it could not read the files
I asked myself: why? and then putted the 128 GB microsd to my pc
I was shocked when I saw it had only 30.8 MB of free space
I tried everything but nothing worked, and here i'm almost giving up on it
info: I used a microSD adapter for my o3ds XL and a usb sd card drive because my pc one's is broken

 

[Eveldee]

Try to do the usual h2testw and check the sd card, it's surely a fake sd card, if it is, try to ask for a refund on Amazon

 

[MyDsiXlIsStuckOnPictoChat]

"Error accessing target"

Try to do the usual h2testw and check the sd card, it's surely a fake sd card, if it is, try to ask for a refund on Amazon

 

[godreborn]

The card is most likely fake. If you bought it from a third-party using Amazon, request your money back. Amazon themselves are usually pretty good at sending genuine products. I plan to buy a fourth 1tb micro-sd for my oled switch in the coming months, and I always check flash media the day I get it.