7.1. SEMS Lite Overview (Only for SE051)¶
SEMSLite enables the deployment and update of applets on SE in the field. When the applets are being upgraded, the data of previous/new applet remains inside the secure element only. Thus it securely preserves the device applet data.
Note: SEMS Lite is only supported for SE051.

7.1.1. Update Manager (from customer)¶
The role of update manager is as under:
Securely downloading update package from its back-end
Defining right time for update (depending on context: battery status, IoT device usage profile, etc.)
Managing switching between current and new applet
Optionally reporting update status to back-end
We provide some examples for update manager (Section 5.1.1.12 SEMS Demos)
7.1.2. SEMS Lite Agent (from NXP)¶
The role of SEMS Lite Agent is an under:
Provide functional APIs to Update Manager
It is a library/module that helps the Update Manager to query/know the state of the system
Use the update package as received by the Update Manager, and update the Applet
Track the update progress / interrupted updates
Optionally retrieve loading receipt from the secure element.