The V15 installer completed successfully and confirmed FM-1_015. The test harness then tried to query the obsolete X0X FM-1 port name and stopped. Enumeration showed the new port name FM-1. The harness was corrected to resolve the current port, the V15 identity was independently queried, and the same return cycle continued with installation of the exact 1.0 package. This was a harness port-selection issue, not a failed firmware write. The updater already rediscovers ports after reboot.
