Ron @RonR - there is an issue with updating to either 2.5 or the trial 2.6 firmware from 2.4. I charged the Cobalt 2 from the wall to 100%. Plugged it in and MacDive recognized it. Downloaded the firmware updates (tried 2.5 and then 2.6 when the following failure occurred. It reoccurred for 2.6.) Mac Pro running Ventura 13.1. Plugged in the Cobalt 2 and Bootloader appears on the Desktop. Drag the firmware update to Bootloader; copying message comes and goes. Try to eject Bootloader which disappears and then reappears. Over and over. Disconnect Cobalt 2 and press Select and Back to reboot. Mac complains that I disconnected Cobalt 2 without ejecting it. Screen never wakes up. Tried putting the end in water but screen never wakes up.