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当前版本: Dan ,

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@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your antenna connections, are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as well as where they are routed as seen here:
 
[image|1488333]
 
=== Update (07/05/2018) ===
 
At this point I think you’ll need to get a replacement AirPort board to see if thats bad.
 
Otherwise the only thing left is something is bad on the logic board connections to the Airport board. While not obvious the Bluetooth part of the board connects to the logic board via an internal USB bus and the WiFi part connects using a PCIe lane directly to the PCH chip.

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编辑: Dan ,

文本:

@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your antenna connectionsconnections, are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as were is iswell as where they are routed as seen here:
@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your antenna connectionsconnections, are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as were is iswell as where they are routed as seen here:
 
[image|1488333]

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编辑: Dan ,

文本:

@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your attendantenna connections are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as were is is routed as seen here:
@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your attendantenna connections are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as were is is routed as seen here:
 
[image|1488333]

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原帖由: Dan ,

文本:

@cito I think you’re now facing a pinched or bad antenna cable. Take a look at your attend connections are the connectors loose either on the board or the crimped on connection to the wire (shielded) also check the location where the cable passes under the logic board as were is is routed as seen here:

[image|1488333]

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open