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Egate-100 Ver. 4.0 Compatibility Requirements 6-1

Chapter 6

Software Upgrade

This chapter explains how to upgrade Egate-100.

Software upgrade is required to fix product limitations, enable new features, or

to make the unit compatible with other devices that are already running the new

software version.

Egate-100 stores two software versions, each of them in one of the two 1.15 MB

partitions of its flash memory, which also contains a boot program. The software

is stored in compressed format. The main version is decompressed and loaded

into the Egate-100 RAM upon power-up. The backup software is kept for backup

purposes. If the main software becomes corrupted, you can swap it with the

backup. By default, Egate-100 is delivered with active software only.

New software releases are distributed as *.img files, to be downloaded to

Egate-100. When starting a download, Egate-100 erases the current backup and

places the new software in the backup partition. When downloading is complete,

the unit checks the integrity of the new software file. If it is correct, the backup

and active files are swapped. The new software release becomes active and the

former active software becomes the backup.

If a failure occurs during downloading, the new version is erased. In this case,

only one version is left stored in the flash memory. The backup software can be

downloaded to the unit and swapped with the main software later.

The information in this chapter includes the following:

• Detailed conditions required for the upgrade

• Any impact the upgrade may have on the system

• Overview of downloading options

• Upgrade via the Utilities menu.

• Upgrade via the Boot menu.

6.1 Compatibility Requirements

Following are the software releases that can be upgraded to versions above

version 4.0B, as well as the hardware revisions that can accept software version

4.0B or higher.

• Software – 4.0B and above

• Hardware – 1.0 and above.

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