diff --git a/HomeAssistant/needfromcharles.md b/HomeAssistant/needfromcharles.md
index ef7c024..a8e7634 100644
--- a/HomeAssistant/needfromcharles.md
+++ b/HomeAssistant/needfromcharles.md
@@ -24,6 +24,13 @@ Cloud API sees zero devices (suspect BLE-only sensors).
 - [ ] Front-door lock brand/model:
 cant you figure it out from dhcp table?
 
+  **Agent (2026-09-02):** checked — active 192.168.1.x leases have no
+  lock-brand MAC OUIs (every lease accounted for: ecobee, TP-Link extender,
+  Amazons, iPhone, Cisco phone, Dell, sectestbed/preprod VMs). HA has zero
+  lock entities (of 273) and Z-Wave JS none. Lock is almost certainly
+  BLE-only (typical for HomeKit locks) — DHCP cannot name it. Need: brand,
+  or just the 8-digit HomeKit code from the vendor app.
+
 - [ ] Lock HomeKit code (if visible in its vendor app settings):
 
 ## 4. Emporia Vue 3 — blocks circuit-level power + BTU loop (#623/#614)