diff --git a/PLAN.md b/PLAN.md
index d538750..94700d4 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -1750,6 +1750,10 @@ updates its display-facing values without a manual restart once sync lands.
     socket events alone
   - Verify on the real Pi whether GPS is actually still producing fixes or whether the issue is
     now hardware/module/fix availability rather than a front-end live-update regression
+  - **Live Pi check 2026-08-10**: after deploying the new endpoint, the real Pi reported
+    `thread_alive=true` but `has_fix=false`, `latitude=null`, `longitude=null`, and
+    `fix_age_seconds=null`. That means the local app/socket path is still running, but there is
+    currently no GNSS fix to stream into the dashboard.
 
   ---