diff --git a/files/ansible-playbooks/sot-updater-upgradecmd.yml b/files/ansible-playbooks/sot-updater-upgradecmd.yml
index 5612258..e682edf 100644
--- a/files/ansible-playbooks/sot-updater-upgradecmd.yml
+++ b/files/ansible-playbooks/sot-updater-upgradecmd.yml
@@ -109,26 +109,75 @@
         nb_small: "{{ nb_kv.get('small', '') }}"
         nb_ok_line: "{{ nb_ok_line }}"
 
-    # --- Extract upgrade_cmd from nb_onedevice_update.py output (robust, no cross-task vars) ---
+    # --- Extract upgrade_cmd from nb_onedevice_update.py output (prefer stdout_lines; tolerate minor typos) ---
     - name: "NB preflight | Capture upgrade_cmd from stdout"
       when: nb_script.stat.exists
       delegate_to: localhost
       vars:
-        stdout_clean: "{{ (nb_preflight.stdout | default('') | regex_replace('\r','')) }}"
-        up_line: >-
+        # Prefer structured lines first
+        lines_struct: "{{ (nb_preflight.stdout_lines | default([])) }}"
+        # Fallback to raw joined text if needed
+        raw_lines: "{{ (nb_preflight.stdout | default('') | regex_replace('\r','')) | split('\n') }}"
+        all_lines: >-
           {{
-            stdout_clean
-            | split('\n')
+            (lines_struct + raw_lines)
             | map('trim')
-            | select('match', '^NB:\\s*upgrade_cmd=')
+            | select('truthy')
+            | list
+          }}
+
+        # Try exact key first
+        line_exact: >-
+          {{
+            all_lines
+            | select('match', '^NB:\\s*upgrade_cmd\\s*=')
             | list
             | last
             | default('')
           }}
-        up_val_raw: "{{ up_line | regex_replace('^NB:\\s*upgrade_cmd=\\s*', '') | trim }}"
+        # Tolerate occasional logger typo like "upde_cmd"
+        line_typo1: >-
+          {{
+            ('' if line_exact else
+              (
+                all_lines
+                | select('match', '^NB:\\s*upde_cmd\\s*=')
+                | list
+                | last
+                | default('')
+              )
+            )
+          }}
+        # Broad fallback: any "NB:" line that contains "cmd=" (last resort)
+        line_broad: >-
+          {{
+            ('' if line_exact or line_typo1 else
+              (
+                all_lines
+                | select('match', '^NB:.*\\bcmd\\s*=')
+                | list
+                | last
+                | default('')
+              )
+            )
+          }}
+
+        # Pick the first non-empty candidate and note which detector hit
+        chosen_line: "{{ line_exact or line_typo1 or line_broad }}"
+        chosen_detector: >-
+          {{
+            'exact' if line_exact else
+            ('typo1' if line_typo1 else
+            ('broad' if line_broad else 'none'))
+          }}
+
+        # Strip the "NB: <key>=" prefix regardless of which variant matched
+        up_val_raw: "{{ chosen_line | regex_replace('^NB:\\s*[^=]+=\\s*', '') | trim }}"
+        # Normalize None/null/empty → ''
         up_val_clean: "{{ '' if (up_val_raw | lower) in ['none','null',''] else up_val_raw }}"
       set_fact:
-        nb_upgrade_cmd_line: "{{ up_line }}"
+        nb_upgrade_cmd_line: "{{ chosen_line }}"
+        nb_upgrade_cmd_source: "{{ chosen_detector }}"
         nb_upgrade_cmd: "{{ up_val_clean }}"
         nb_upgrade_cmd_len: "{{ (up_val_clean | length) }}"
 
@@ -137,6 +186,7 @@
       delegate_to: localhost
       ansible.builtin.debug:
         msg:
+          - "upgrade_cmd detector: {{ nb_upgrade_cmd_source | default('none') }}"
           - "upgrade_cmd line: {{ nb_upgrade_cmd_line | default('<none>') }}"
           - "upgrade_cmd parsed: '{{ nb_upgrade_cmd | default('') }}' (len={{ nb_upgrade_cmd_len | default(0) }})"