iMac error code -5101f
How do I fix the error code -5101f when trying to reset my iMac 2017 computer. Cmd+R / Cmd + R + Shift. Did not work. I receive a spinning glove and a loading bar until it presents a glove with an exclamation mark. Under the exclamation mark is the error code -5101f. I have tried via WiFi and via Ethernet. Please help