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title: Chronology of Major Events (BDYG18ProArmbianBuilder)
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---

# Chronology (Timeline)

| Date | Event |
|------|-------|
| **2025** | Board introduced. |
| **2026‑07‑21** | Vendor kernel 6.12.74 baseline observed. |
| **2026‑07‑23** | First RKDevTool flash (DHCP, SSH reachable). |
| **2026‑07‑25** | SPI‑NOR overwritten → MaskROM on power‑cycle (Failure A). |
| **2026‑07‑27** | Power‑off lock‑up discovered; added `emergency‑reboot.shutdown`, disabled GMAC0; flashed self‑built U‑Boot v2026.04; DTB patches (`syscon‑reboot‑mode`, TSO removal); set TCP to Cubic. |
| **2026‑07‑28** | Confirmed `emergency‑reboot.shutdown` redundant; clean reboot works. |
| **2026‑07‑31** | TSO disabled → 4 MiB upload at 29.6 Mbps, 0 retransmits. |
| **2026‑08‑08** | Documentation updated (sections 6 & 15). |
| **2026‑08‑12** | Consolidated evidence, decisions, open‑item list; snapshot of final system state taken. |
| **2026‑08‑16** | Current system state (see overview). |

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