USB-C port only works in one orientation

[pjny]

Hi,

I was able to charge my macbook 2015 but when it came to data transfer speeds I was getting about 30-40 mb/s via Samsung SSD 860. I discovered that if I flipped the usb-c plug in a certain orientation I could get the full bandwidth of the device. If i plugged it in the flip side data transfer was slow.

Anyone know why this happens and if there is a way to fix it without Apple gouging me for a repair?

Thanks.

 

[chabig]

First things first, get a new cable. Logically, that can’t be a port problem.

 

[pjny]

Hi, I've tried it with five devices and about six cables including usb-if certified usb-C cable:

https://www.amazon.com/Cable-Matters-USB-IF-Certified-Delivery/dp/B01L0F6AJI

It is definitely the port. Just want to know if there is a safe way to clean the port without causing some sort of damage.

 

[chrfr]

Hi, I've tried it with five devices and about six cables including usb-if certified usb-C cable:

https://www.amazon.com/Cable-Matters-USB-IF-Certified-Delivery/dp/B01L0F6AJI

It is definitely the port. Just want to know if there is a safe way to clean the port without causing some sort of damage.

Are all the cables you tried the same brand? If not, the port is probably damaged, rather than just dirty, and would need to be repaired.

 

[pjny]

No they are different brands. Just wondering why this is happening? I am waiting to buy a new Macbook 2019 if apple releases one so I don't want to spend any $ repairing it. I had same issue with lightning port on my iphone when I charged it in my car via 12v cigarette adapter: it would only charge in one orientation.