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Firmware Downgrade Flow
1. Back up the latest startup-config.conf of the Active device (Device 1).
2. Switch the passive device (Device 2) to active mode.
3. Disconnect all Ethernet cables and heartbeat port link on Device 1.
4. Downgrade the firmware to Device 1 and apply the backup configuration
file startup-config.conf to Device 1.
5. Disconnect all Ethernet cables on Device 2.
6. Connect all Ethernet cables on Device 1.
7. Downgrade the firmware to Device 2 and reset it to factory default settings.
8. Deploy HA Pro on Device 2 from the beginning and connect the heartbeat
port link to perform full synchronization.
Configuration File Backup
On Active device (Device 1), download the configuration file startup-config.conf.
MAINTENANCE > File Manager > Configuration File
Switch Passive Device to Active Mode
Disconnect any of monitored interfaces of Active device (Device 1) to have the
Passive device (Device 2) take over the active role. In this example, ge2 and ge4
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