I am having an issue with my very old Macbook Pro 17" which is the early 2011 model and would appreciate any advise to that end!

The wifi works only rarely and it just gets disconnected all of a sudden! Then, it becomes unable to find any network and I have to turn it off and on many times to bring it back which goes in a minute again!

So, my question is if it is possible to change the WiFi card for this model?

Thank you very much for your help already!


The short answer is Yes.

It's actually one card for both Airport/Bluetooth connectivity and the part numbers you can choose from are 661-5867 (Bluetooth 2.1) and 661-6510 (Bluetooth 4.0). These cards can be used in multiple MacBook Pro models, including all of the early 2011 models.

Be careful not to make the mistake of getting the one suited for the Late 2011 17" model, as this is not the same - although the 13" and 15" Late 2011 models do use the same card as your MBP.

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  • So, something like this should work, right? Also, is it something that can easily be replaced by opening up the laptop myself? I have opened it up several times for cleaning and other stuff but I never replaced this item and I didn't even know how it looks like before seeing this one in the link above! – Hanifi K Sep 12 '19 at 4:45
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    That's it, yes. Just a heads up, although it looks quite large in the photo, it's really quite small. Also, the details in the ad are mixed up a little. That is, the one in the photo is actually for part 661-6510, but the main heading is for part 661-5867. It's also compatible with more MBP models then they list, etc. I suppose they're largely interchangeable, but one has Bluetooth 4.0 and the other Bluetooth 2.1 + EDR (which is the one you have now in your MBP). You can tell by the Printed Part #: BCM94331PCIEBT4CAX relates to part 661-6510, while BCM94331PCIEBT4AX relates to part 661-5867. – Monomeeth Sep 12 '19 at 7:57
  • That's great. I do thank you a lot! – Hanifi K Sep 12 '19 at 16:59
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    @HanifiK You should upvote and accept this if it answered your question. That's the best way to say thank you. :) – TorBro Sep 13 '19 at 21:15

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