USB-C ports are only charging and not transmitting on my MacBook Pro

nappingnoodle wrote:

My USB-C ports are only functioning for charging—they do not transmit HDMI signals for my monitor or ethernet. However, they do appear to function normally during the MacBook’s boot process.

MacBook Pro 13″, macOS 13.7

depends on your exact device...(?)

can you clarify— this is with the appropriate adapters?

About the Apple USB-C Digital AV Multiport Adapter - Apple Support

Connect your Mac to the internet using Ethernet - Apple Support

Noodle,

Are you sure it is the ports? A possible culprit is the cable. Some USB-C to USB-C cables are only good for charging and do not transmit data. Try it with a "known-good" Apple cable and see if that corrects the problem.

nappingnoodle wrote:

I tried both SMC and NVRAM reset but the issue persists. Can it be a hardware issue? Still no data output from the 2 ports, just charging.

Try rotating the USB-C connector 180º upside down to see if it makes any difference. This is not a fix, but just a possible temporary work around to access your devices. If this works, then it means the USB-C ports are damaged. For the 2017 non-touchbar model, this means the Logic Board is bad since the USB-C ports are integrated into the Logic Board.

I do not recommend spending any money on repairs for any Intel USB-C Macs for multiple reasons especially since the money spent on repairs is better put towards a new laptop. FYI, this laptop has a lot of known design & manufacturing issues as well as some lesser known issues and it uses an OS (Ventua) that will lose official support in a few months.