I’ve done this before with a 128GBP sdxc and it worked perfect. Tried to do it again with a 128GBP micro and the internal folder was a few letters with a bunch of zeros at the end. I did everything right but it told me the files were all corrupted. I put it back. On the old card and it worked fine. Do you think it was the card? Fyi that card is now in my phone which only goes up to 32gbs. Should I try with a new card or what?