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.
for more additional guidance and a step by step tutorial with screenshots, which supports this video, please see the following article which this video is based on HOW TO: Update VMware ESXi 7.0U2 to ESXi 7.0U2a direct from VMware.