diff --git a/modules/workflow_serial.py b/modules/workflow_serial.py
index 03e0bca..804190a 100644
--- a/modules/workflow_serial.py
+++ b/modules/workflow_serial.py
@@ -135,6 +135,15 @@ def _login_serial_console(ser: SerialPort) -> tuple:
         ok("Logged in to IOM console.")
         return True, password
 
+    # "Last login:" in the response confirms the password was accepted —
+    # the shell prompt just hasn't arrived yet (slow shell init or motd).
+    # Give it up to 10 more seconds to appear.
+    if "last login" in response.lower():
+        response += _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=1.5, timeout=10.0))
+        if _at_shell_prompt(response):
+            ok("Logged in to IOM console.")
+            return True, password
+
     error(f"Login failed. Console response: {response.strip()[:120]}")
     return False, ""