Chosen Solution
I recently dropped my early 2013 Macbook Pro (15”, retina) a week ago. Following that, everything worked for the first 1-2 days, then the ports would sometimes work, and now they aren’t working at all. Reading previous posts (Ports on right side have stopped working, SD Card and USB), it could be an I/O cable issue, and my question is whether that could still be the case if it was intermittently working? Thank you!!!
The cable might be the problem. Use this guide to reseat/replace the I/O Board Cable MacBook Pro 15" Retina Display Early 2013 I/O Board Cable Replacement
