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NNTP-Posting-Date: Thu, 25 Jul 2024 18:45:17 +0000
From: ant@zimage.comANT (Ant)
Subject: Re: Broken Intel MBP's top left USB-C/Thunderbolt 3 port?
Newsgroups: comp.sys.mac.hardware.misc,comp.sys.mac.misc,comp.sys.mac.portables,comp.sys.mac.system,comp.sys.mac.systems
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Date: Thu, 25 Jul 2024 18:45:17 +0000
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In comp.sys.mac.portables Ant <ant@zimage.comant> wrote:
> In comp.sys.mac.portables Ant <ant@zimage.comant> wrote:
> > Hello,

> > A 2020 13.3" Intel MBP (A2251 model; MWP62LL/A)'s top left 
> > USB-C/Thunderbolt 3 port stopped working for power charging and 
> > connecting with original Apple USB-C power and third party power 
> > adapters (e.g., Anker). I even tried to connecting Apple's USB-C Digital 
> > AV Multiport Adapter and iPhones, but macOS Ventura v13.6.7's top right 
> > notification says "USB Accessories Disabled -- Unplug the accessory 
> > using too much power to re-enable USB devices." even with direct iPhone 
> > connected with USB-C and lighting cables! Also, no HDMI video too.

> > The other three ports worked fine so I suspect this port is busted since 
> > I used it a lot. I looked inside and things looked OK (not dirty and 
> > dusty), but it was tiny and hard to see inside. Does anyone know what 
> > else to try? I wonder if it got fried inside. I sniffed that port and 
> > didn't smell anything unusual. My client said that port stopped working 
> > during his out of country week hot and humid trip.

> > Thank you for reading and hopefully answering soon. :)

> I just tried two USB-C hardwares (a flash stick and a mouse) on this 
> "broken" USB-C/TB3 port. Both also failed to connect and macOS Ventura 
> v13.6.7 says "USB Accessories Disabled -- Unplug the accessory using too 
> much power to re-enable USB devices." I think this hardware port is 
> broken. What do you think?

Console app and Terminal app???s dmesg command showed this interesting 
line: HS02@14200000: AppleUSBHostPort::interruptOccurred: overcurrent 
detected with port status 0x4000, localSimulatedInterrupts = 0x0

I think this port is broken.
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