Sudden failure is rare. Was this machine involved in a spill or a drop?
Yes the card can be replaced it is under the clutch cover. It is a very difficult difficult repair project.
If you decide to DIY study the guide and notes before beginning (not just look them over) . Purchase all the recommended tools (every job is easier when you use the correct tools).
You may want to consider a USB bluetooth card as a work around.
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It uses the following BT: Built-in Bluetooth 2.1 + EDR
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