System Downgrade

This article describes how to downgrade an Exigo system between major releases.

Downgrade 1.3 to 1.2

Recommended downgrade procedure:

1. Flash AMC-IP with BSP version 11
2. Install 1.2 Alphasys/BSP
3. Clean and factory default AMC-IP
4. Build new database in 1.2 version of EMT
5. Upload the database with all endpoints
6. Install 1.2 on endpoints from AlphaWeb

Prerequisites

1. Download and install the VS-AlphaCComXEImageUpgrade
2. Download the latest 1.2 software package

AMC-IP

• Open the VS-AlphaCComXEImageUpgrade and select "Select Image File".
• Navigate to "... Vingtor Stentofon\VS-Tools\AlphaComImages"
• Select "axeu_b3001_a1101303.aimg"
• If server status says: "Could not start HTTP server", a TFTP-server is needed to transfer the image to the AMC-IP.

Alphacom ImageUpgrade window

• Load a tftp-server and set the root folder to:"... \Vingtor Stentofon\VS-Tools\HttpFileServerRoot".
• Write the IP of the AMC-IP that will be flashed --> Connect to target
• If the status window shows: "Bootloader Status Recived - Status OK", everything is ready --> Press "Start Image Upgrade"

When the progress bar is at 100%, navigate to AlphaWeb and verify that versions are:

• Alphasys: 11.1.3.3
• BSP: 31.01

Alphasys and BSP after flash

• IPORTANT NOTE: The flashing procedure does not clear the old database, so after performing the flash, it is required to perform a "Clean adn factory default" from alphaweb.
• 1.2 BSP and Alphasys can now be installed from the web upgrade form

Turbine devices

• If the system is going to be powered and connected during the downgrade process, it is important that AMC-IP is downgraded before downgrading the turbine-devices. If not, the turbine devices can download a 1.3 database from AMC-IP while running on 1.2 software. This may send the turbine device into a "reboot-loop". If this happens, the station needs to be flashed with production-software.