Examine the top of the processor that should have a small dot in one of the corners. This dot indicates where pin one is located on the bottom of the processor.

检查处理器的顶部，在其中的一个角上应当有一个小点，这个小点表示了处理器底部针1的位置。

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To access that slot (located on the phone's upper right edge), however, you'll need one of those pin keys -- the same goes for the SIM slot on the top right.

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