Chosen Solution
Hi, I have a MacBook Pro Late 2015 and I have a problem with my right USB. I can see storage sticks and external hard disks (also copy from/on them), but if I try a mouse or my microphone, it won’t work (the microphone’s led is red, so it gets power - Blue Snowball Ice). Resetting Reset PRAM/NVRAM or SMC won’t do anything for me. The USB on the left works just fine, so it’s not about a driver or a conflict. What do you guys think?
The Usb port on the right side is part of the I/O board. That makes it relatively easy and inexpensive to try restore it’s function by a part replacement on a DIY basis. You may want to try checking all connectors between I/O board and logic board first. If you’re not in a hurry you might try replacing I/O flat cable as a first step and the board afterwords to possibly save some money.
