The headline shold be causes some problems on some machines. My N7 was a grade A refurb via Argos. Someone bought it and wondered why the half price iPad they bought wouldn’t connect to iTunes and asked for their money back! So I don’t know if it’s early or late hardware. But it was really quite cheap compared the price new. Mrs. FMF has a similar one but 16GB. Hers is still on 4.4.4 but it’s only used for BBC iPlayer catchup etc.