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Step 9
Removing the LCD.
One of the most exciting features of the new Nano is what covers the LCD: real glass.
Earlier iPod Nanos have been incredibly durable. Hopefully, the same will be true of this iPod, even with a glass screen covering. We certainly appreciate the addition of real glass; it's nice to see some of the enhancements from Apple's larger and more expensive devices make it to the Nano.

Step 10
Fortunately, the glass is separate from the casing. In fact, nothing but the iPod's internals hold the glass in place on the casing.
The front of the glass is curved to match the front of the iPod. The glass is about .7 mm thick on the edges, and 1.7 mm thick in the middle.
The new LCD is actually almost exactly the same size as the 3rd Gen Nano LCD. The only difference is that instead of a resolution of 320x240, you now get 240x320.

Step 12
The top of the logic board. We're working on identifying the chips.
The main processor appears to be an Apple-branded ARM processor manufactured by Samsung with DRAM on-package. Based on the date code, this processor was manufactured in early July of 2008.
Markings on the main processor: 339S0049 ARM, K4X56323PI-KGC4, YWE025QH 825, APL0278A00, N1B2HOP 0831
Apple-logo chip above the processor: 338S0687-AC, 08288HBB
Small black chip below the main processor: 33DL, 2827
Shiny Apple chip in the bottom right: 338S055C, 189N0824, SGP
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Except that the glass breaks really easily! I just got mine, I dropped it and it shattered, on day one. Fortunately it still works but I will really have to watch the LCD screen.
The ipod nano 4th gen is actually realy easy to get into. I will be putting to ifixit with my teardown of the ipod nano 4th gen
hi. i spilt coke on my ipod 4th gen.. Is there anyway these steps would work? plz, plz, plz HELP ME!!!!!!!!
HOW DO U DO IT? I DONT GET HOW U OPEN THE BOTTOM OF THE IPOD. PLZ HELP ME! =(
i dropped my i-pod in the washing machine...everything still works appart from the screen any one know how i can fix it?
Can you replace the glass without opening the ipod?
What about the accelerometer?