This short guide explains how to upgrade an existing installation of VMWare ESXi 7.0 to upgrade 3K
As pre-requisite you need to have too access and either insert the commands directly or via an active SSH connection.

esxcli software profile update -p ESXi-7.0U3k-21313628-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml –no-hardware-warning