Nano 4G

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Nano 4g frt a.png Nano 4g bck a.png


Label Component Part Markings Notes
2 CPU Samsung S5L8720 339S0049 ARM, K4X56323PI-KGC4, YWE025QH 825, APL0278A00, N1B2HOP 0831 ARM1136JZF-S processor. It is definitely worth knowing that this is the exact same processor used in the iTouch 2G. This could mean that some of the same exploits for that could possibly be used. Here is a very interesting page about the S5L8720 processor.
SDRAM 32MB, probably MDDR. Integrated into the processor, similar to the iPod Touch and iPhone lines.
4 Accelerometer LIS331DL 33DL, 2827 The newer Touch's, iPhone's, and even the iPad have similar accelerometers, and I've discovered a pattern in the chip names.
6 NAND Flash Varies TH58NVG6D1DLA87, U20516, JAPAN, 0826MAE
5 Audio codec Probably Cirrus 338S055C, 189N0824, SGP I determined this because the Nano 5G has a similar chip, which we are sure of the identity. One person lifted this chip and found that the pins connect to the LCD connector. Not much info was given, and it could just be a common ground, but the identity of this chip is still up in the air.
1 Power manager D1759 338S0687-AC, 08288HBB

Reverse Engineering Results

Timers: These clockgates have been found to be related to timers: 37, 55, 56, 57, 58, 59, 60, 69, 70, 128, 129, 130, 131, 132, 133, 134, 150 and 151.

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