Maintenance Firmware (MFW) is provided for netX90 and netX4000 based products.
This firmware is a dedicated / standalone firmware offering the necessary services to update (check and install) a regular firmware files (LFW) to netX flash for execution.

The functions of the maintenance firmware are:

to serve as “basic” or “recovery” firmware, which is started if the “regular” firmware is not available or fails to start
to manage the download of new firmware and the update/replacement of existing firmware
to install the parts of the "regular" firmware (*.nxi, *.nxe, *.nai, *.nae firmware files) to their defined destinations.
to download and install other files (like e.g. configuration files) if the netX 90 is equipped with external SQI Flash with a file system (firmware use case C)

When the maintenance firmware is started, it runs in the COM CPU of the netX, allowing no other firmware to run in parallel, not even in the APP CPU of netX90.

The MFW can be started by the ROMloader directly, if no regular LFW is found. User can trigger start of the MFW via DPM or diagnosis interface using the HIL_FIRMWARE_RESET_REQ packet.

Overview of the Mantanance Firmware versions and supported features:

Maintenance FW Version	v1.1.0.x	v1.2.0.x	V2.0.0.0	V2.1.0.0
netX Diagnostic Interface			**	**
DPM Interface
Firmware Installation from Update area or FWUPDATE.zip container
Activation of Console Mode
(Use Case C) FTL / Wear-Leveling	*	*
Secure-Boot Option