Description
Unable to update EMA agent file in endpoints.
Resolution
The Agent file on managed endpoints is automatically updated upon connecting to the updated Intel® Endpoint Management Assistant (Intel® EMA) server for the first time from version 1.4 to 1.5.1.
The upgrade process from version 1.5.0 requires enabling the option called Agent auto-update in the Swarm Server (enabled by default ).
The path of the option is EMA portal>Settings>Swarm Server

Section 2.2 – 2.2 Performing an Update Installation Using the Setup Wizard of the Intel® Endpoint Management Assistant
(Intel® EMA) v1.5.1 Single Server Installation Guide, August 18, 2021, provides further documentation.