Is that because of the missing QT error?

Mine was sold by Samsung and it was still counterfeit.

They literally try to gas light you when you try to bring the problem up to them. They sent me an in app questionnaire that then told me that often products don’t work and that people think they are counterfeit. My memory stick was an obvious counterfeit. It’s kinda sick that Amazon does this.

Amazon has to deal with their counterfeit merchandise problem. Try to buy a memory card on Amazon and odds are you get a bogus counterfeit card.