All I had to do was flip on USB Debugging in the Developer Options. Go to Settings - System - Advanced - Developer Options - USB Debugging. That did the trick for me with my old phone.
So I’ve got this red blinking light on my 2020 Ioniq SEL. It’s chillin' in the front center of the dash, behind the windshield. The manual is totally MIA on this one. Anyone got a clue what this thing means?