Firmware update on NAVIO 2

I am using a raspberry pi and NAVIO 2 with my quad copter. I’m trying to upgrade the firmware and I keep receiving an error message that reads; “Failed to discover board id. please reconnect via USB and try again”

I’m currently connected via USB to Micro USB.

Can anyone please help me.

Have you tried to ask on Emlid forum, that would be the first place to ask as they manufacture and support the product… I guess ?

Thanks. I will post the question on their forum.