iMac Intel 27" EMC 2546 AirPort/蓝牙卡更换

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Use the flat end of a spudger to disconnect each of the four antenna connectors from the AirPort/Bluetooth card.
Note the original positions for each connector when reconnecting the cables—from left to right on the card, the antennas are connected in the following order:
Leftmost
Top
Upper right
Lower right

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