When to Update Firmware?#

The SiWx917 ICs, modules, or development (expansion) kits, when received for the first time, do not contain any firmware by default.

The SiWx917 connectivity firmware version is tightly coupled with the WiSeConnect 3 extension version. You must update the SiWx917 connectivity firmware when:

• you first receive an SiWx917 EXP expansion kit,

• you first receive an SiWx917 co-processor radio board, or

• you upgrade or downgrade your WiSeConnect 3 extension.

When the SiWx917 NCP does not contain any Firmware or any valid Firmware, the only possible method to update the firmware is Firmware Update via Bootloader. When the SiWx917 has a valid firmware, you many use either Firmware Update via Bootloader or Over the Air (OTA) Firmware Update or based on your choice. The details of these methods and their relevant examples are explained in Firmware Update Methods.