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Model A1419 / EMC 3070 / Mid 2017 / 3.4, 3.5 or 3.8 GHz Core i5 or 4.2 GHz Core i7 Kaby Lake Processor (ID iMac18,3) / Retina 5K display. Refer to the older iMac Intel 27" Retina 5K Display (Late 2014 & 2015) guides as the system is very similar.

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How to replace the Bluetooth 4.2 on iMac 27" 5K (mid 2017)?

After having intermittent problems in Bluetooth, now it has stopped working, it says no available. I want to replace the component, but I can not find the part and would like to know how to proceed?

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I have the same model, and exactly same problem, started with difficulties connecting than after it stopped working, “Bluetooth: not available”! (#@%@%

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First I’ll warn you this is not an easy fix! You might want to just let the local Apple Store deal with it.

We don’t have the Mid 2017 model guide but the Late 2014 & 2015 is almost the same iMac Intel 27" Retina 5k Display AirPort/Bluetooth Card Replacement. If you have not opened the newer systems you need to be careful as its very easy to damage the display if you don’t use the correct tools and techniques as outlined in the IFIXIT guide. The removal of the board needs to be done carefully as you can damage the socket if you push the board away to far. That would be the worse! As the logic board would need repairs.

The other issue is the availability of the part. In looking at my normal sources none have it here in the states. I’ve only found the UK version iMac 21.5"/27" Airport/Bluetooth Card, British (17)

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