Hererlink problem after update

Hi. I updated new update to Herelink. First the ground station with WiFi and then the air unit (usb-cabel with Mac). Then I opened the Herelink. How can I upgrade to complete the air unit. How do I proceed now? I followed the youtube (Mad’s Tech) instructions. Thank you.

Can I somehow restore the old update ?

Did you decompress the zip before executing flasher?
Did you power the air unit from its power port?
Can you try on windows?

Thanks a lot Alvin. This fixed when I upgraded with Windows!