Hacking WiiU "The device inserted in SD cannot be used" error

[tsubasa0504]

I am trying to get 32GB microsd-HC card thru SD cart adapter to work in wiiu. I have modded my wiiu while back(with aroma), and has all files in SD card, bootup screen shows that "sd:/wiiu/payload.elf" was not found.
Mii maker shows "This SD card cannot be used" and vwii shows the same so SD must be recognized.
I have formatted it using guiformat with 32K Unit allocation size(SD card is recongnized and readable in PC), but still doesn't work in WiiU.
any help?

 

[fate6]

counterfeit card? that or faulty SD slot are my guesses.

 

[elk1007]

This could be the card or the adapter.
To troubleshoot, try using a different sd card in the adapter.
If problem persists, suspect the adapter itself.
Could be a janky adapter.
Please also make sure write-protect switch is disabled on adapter.

 

[tsubasa0504]

I tried using different card and adapter, and no luck...
Also, i tried formatting it with NTFS and exFAT just in case, but it didn't work either..

The cards i used is Samsung EVO Plus 32GB and Sandisk Ultra 64GB.
Adapter is one that came with samsung card and Buffalo's microsd adapter.

**EDIT**
I used sdcard.org's SD Card Formatter and it worked.
i hate guiformat and windows default format now