We are about to upgrade SZ-100 firmware version 3.5.1 to 3.6.2 then to 5.2.1, but Data migration is not supported if system upgrades from release 3.6.x. In the manual there is this recommendation:
• Backup and export existing statistics and reports using Export tools or Streaming API before the upgrade.
Is there anyone who could help or guide me on this? How I can do it step by step?