My Passport Ultra USB-C lost adapter

I’ve lost the adapter plug for the USB-A male end to plug into a computer with no USB-C. I tried using a cable I had for a phone with the right ends, but the drive wasn’t recognized. I thought the drive was damaged but a full test on the WD Utilities shows it’s all right.

Maybe the USB-C plug needed to be the other way round? Even though they’re Supposed to work either way. I’ve contacted support about buying a couple of spare cables, but haven’t heard from them yet.