Macbook Pro USB-C ports still charge but do not recognize adapters

Question

Macbook Pro USB-C ports still charge but do not recognize adapters

My Macbook Pro 13" (2018) with the 4 thunderbolt ports has two ports that do not work. They were working fine before I plugged in a friend's ac adapter to charge it recently. I tried plugging it in to two ports and now both these ports do not recognize my HDMI adapter nor my USB hub. It appears that my macbook is still able to charge from these affected ports after trying it out with my charger (the one that came with the macbook), but nothing else will work with it. The two affected ports are the left/right ones towards the back of the laptop.

I've tried a SMC reset (for the T2 macbooks) along with a NVRAM/PRAM reset but the issue still remains. Does anyone have any other possible fixes for me to try?

MacBook Pro with Touch Bar

Posted on Mar 27, 2020 3:35 PM

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Answer 1

Mar 27, 2020 4:01 PM in response to thelonewonderer

There is nothing else to try. The I/O Boards' safety circuitry has been partially damaged on those ports. You will need to get the laptop repaired.

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Answer 2

Mar 27, 2020 5:01 PM in response to thelonewonderer

Since the other two ports work fine I am fairly certain it is just the I/O Boards. If it is the I/O Boards labor will cost more than the parts. I don't recall the price, but we are talking something like $30 per I/O Board (there are two -- one on each side of the laptop).

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Answer 3

TheLittles

Level 10

204,065 points

Mar 27, 2020 5:11 PM in response to thelonewonderer

thelonewonderer Said:

"Do you think this would be an expensive fix for an out of warranty macbook?"

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Reinstall the macOS:

Nothing would be deleted. It's just that items that have become corrupted or deleted, would be placed back to where they should be. Go Here: How to reinstall macOS from macOS Recovery - Apple Support.

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Answer 4

TheLittles

Level 10

204,065 points

Mar 27, 2020 5:13 PM in response to thelonewonderer

thelonewonderer Said:

"Macbook Pro USB-C ports still charge but do not recognize adapters"

--------

Reinstall the macOS:

Nothing would be deleted. It's just that items that have become corrupted or deleted, would be placed back to where they should be. Go Here: How to reinstall macOS from macOS Recovery - Apple Support.

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Answer 5

Mar 27, 2020 4:12 PM in response to HWTech

Do you think this would be an expensive fix for an out of warranty macbook?

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Macbook Pro USB-C ports still charge but do not recognize adapters

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