HaQue
Joined: 16 Feb 2013
Posts: 469
Location: Adelaide, Australia
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 Posted: Tue Sep 20, 2016 4:21 Post subject: LGA60 iPhone NAND paper
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I am adding this as there is some info about recently discussed LGA60 chips. Technology called PPN, Perfect Page New, and also mentions VCC and GND being swapped:
| Quote: | According to some sources, starting from iPhone 4 models, Apple started using a new type of NAND memory devices, called PPN (Perfect Page New). They use a
dedicated memory controller that performs ECC on the fly thus reducing the load on the main SoC chip. This was achieved by acquiring the ECC controller manufacturer Anobit in 2011. Since then, four large NAND manufacturers Toshiba, SK hynix, Samsung and SanDisk started production and supply of the new type of NAND memory devices in new LGA60 packages with custom interfaces. |
iPhone 5c NAND mirroring paper
https://arxiv.org/ftp/arxiv/papers/1609/1609.04327.pdf
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