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Editing Step 14 —

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Remove the EMI shield from the logic board, and presto!

This board is markedly different than the pre-production board we uncovered.

Markings on the A4:

N26CGM0T 1007 APL0398 33950084 YNL184A2 1004 K4X2G643GE

Yes, the K4X2 is a Samsung DRAM part number!

Decoding the part number shows there is 2Gb of memory inside. This translates into ~128MB of memory per die, for 256 MB total. (NOT 512MB, as we previously reported.)

This means the A4 processor is probably being manufactured by Samsung.

The DRAM was stamped at the end of January, while the processor die was likely manufactured the third week of February.

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