This video will show you how to update ESXi 7.0U2 to ESXi 7.0U2a in 2 easy steps to get your system up to the latest release. In this tutorial, the version of ESXi 7.0 installed is ESXi 7.0U2, released on 20 April 2021, but this article can be followed to upgrade any version of ESXi 7.0. If your ESXi host has access to the internet, this method will pull the update direct from the internet and update the ESXi host. If you prefer the slower old fashioned method or your host does not have access to the internet, please follow this article - HOW TO: Update VMware ESXi 7.0U2 to ESXi 7.0U2a in 5 easy steps
VMware has removed my older legacy processors (CPUs) from ESXi 7.0U2, and also storage and network controllers, please check the VMware Hardware Compatibility Lists (HCL) here.
Make sure your ESXi server is up to date with the current firmware with - 2 Easy steps to upgrade VMware vSphere Hypervisor ESXi 7.0 GA to ESXi 7.0b Bulld 16324942 by downloading and applying the update directly from VMware.