Square credit card reader?
Does anybody use the Square credit card reader with the Z Ultra? It doesn't seem to be working, the app says it can't read the card no matter how many times you swipe. The same card works on the first swipe on my wife's Note 3. The reader and app used to work fine on my old Xperia Z, just not the Ultra.
I have rooted the Ultra, could that be the problem?
Any feedback would be great, as I use the Square reader for my business from time to time.
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