It seems it is a hardware malfunction, so is it possible to replace the USB port only on the logic board of a Mac mini Late - 2. This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
It's possible but difficult, especially if you aren't experienced with soldering electrical devices. The other problem is that your USB ports may be fine.
Issues with USB 3.0 Port (s) on my late 2012 Mac Mini
For example, the problem could be with the USB controller on the logic board especially if all of your USB ports stopped working! While your question states you have tried all non physical solutions, that doesn't actually specify what you've tried.
Note 1: that the extended test will take some time. Take a note of the results and report back. Note 2: If pressing and holding the D key at Step 3 doesn't work, start again at Step 1 and, at Step 3 press and hold both the Option D keys instead. This will try and run diagnostics from the internet instead, so you will need to allow more time for it to complete.
Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 1 year, 10 months ago. Active 1 year, 10 months ago. Viewed times. Allan Our tests included timing how long it took to copy a 10GB file to the external drive in other words, to write the file and then to copy that file back to the internal drive read the file.
Late Mac Mini, USB Port & Bus Al… - Apple Community
We ran a similar test with 10GB worth of smaller files and folders. Our USB 3.
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Regardless of which test we ran or how we connected the drive, all of our USB 3. We also ran the tests again with the USB 3. Our USB 2. Interestingly, the write speeds for the files on folders tests were faster using the hubs, going from FireWire was about half as fast as USB 3. The read scores were faster, though at Thunderbolt turned in scores nearly identical to the USB 3.
Again, USB 2.
The Common Denominator and Other Clues
We saw the same MBps scores across all tests, with or without the hub. In this case, USB 2. Aja and file-read test results were a little slower— MBps—while reading a folder with 10GB of smaller files took just about MBps. The slowest score for USB 3. FireWire results were flat compared to the hard-drive tests except for the 10GB folder write test: At Results were much faster than USB 2.