Download software from VMware (The zip update file.).

Put update zip file on ESX server. I created an update directory in my datastore1 directory. I use scp from the ESXi host with Tech Support Mode enabled.

Put the host in Maintenance Mode via the vSphere Client (right mouse click on the host).

esxupdate –bundle zipfile update


Update your vSphere client, if needed by browsing to your ESXi server name (http://esxi-host).

Take out of maintenance mode via vSphere Client.

Boot guests.