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2.5 GHz dual-core Intel Core i5 processor (Turbo Boost up to 3.1 GHz) with 3 MB shared L3 cache.

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No WiFi or Bluetooth after replacing battery and speakers

I’m not sure where to begin looking for the problem. Can someone point me in the right direction? I have no Wi-Fi or Bluetooth after replacing the battery and speakers on my MacBook Pro 13 inch retina late 2012 laptop. I followed the tutorial exactly and did not seem to have any problems during the repair.

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Either the I/O board cable or the I/O board its self has an issue

MacBook Pro 13" Retina (Late 2012-Early 2013) I/O Board Data Cable

MacBook Pro 13" Retina (Late 2012-Early 2013) Right I/O Board

Here’s the guide MacBook Pro 13" Retina Display Late 2012 I/O Board Replacement

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MacBook Pro 13" Retina (Late 2012-Early 2013) Right I/O Board

$49.99

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MacBook Pro 13" Retina (Late 2012-Early 2013) I/O Board Data Cable

$4.99

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I’m an amateur here so I really appreciate your time. I made sure all cables were reconnected properly. In your opinion should I proceed with replacement of the recommended items? I was extremely careful when I replaced the battery so I don’t think I damaged anything. Are there any other things I should check first? The only other ‘symptom’ before I replaced the battery was occasional difficulty getting the laptop to connect to a Bluetooth speaker. It would sometimes take multiple attempts to connect with no apparent cause. Thanks again.

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Try reseating the I/O cable, if that fails replace it and test again.

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Will do thanks!

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I’m having this same issue. Did you solve it in the end?

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@henrychugh26 - Did you try resetting the cable and if that didn’t help replace the cable. 40% of the time reseating fixes it and the other 40% replacing is needed. And lastly 20% the board is corroded up.

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Angela Desjardins crwdns2934231:0crwdne2934231:0
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