Kingston microSD cards using 3rd party memory chips?
“Andrew “bunnie” Huang has made an interesting blog post about problems he’s found with Kingston microSD cards.
He first encountered a batch of bad cards during production of the ChumbyOne, and found Kingston initially unhelpful when trying to get them replaced. After noticing some unusual markings on the chips, he decided to investigate for himself, comparing the ID data and dissolving the cards’ casings with nitric acid to take a look inside.
He found that each of his Kingston-branded samples actually had a Toshiba/SanDisk memory chip inside, and that the batch of low-quality cards he received may not be as uncommon as he thought.”