diff --git a/homeassistant/components/mqtt/config_flow.py b/homeassistant/components/mqtt/config_flow.py
index 2ef881ceaf4..b022a46cbe7 100644
--- a/homeassistant/components/mqtt/config_flow.py
+++ b/homeassistant/components/mqtt/config_flow.py
@@ -1904,8 +1904,12 @@ ENTITY_CONFIG_VALIDATOR: dict[
 
 MQTT_DEVICE_PLATFORM_FIELDS = {
     ATTR_NAME: PlatformField(selector=TEXT_SELECTOR, required=True),
-    ATTR_SW_VERSION: PlatformField(selector=TEXT_SELECTOR, required=False),
-    ATTR_HW_VERSION: PlatformField(selector=TEXT_SELECTOR, required=False),
+    ATTR_SW_VERSION: PlatformField(
+        selector=TEXT_SELECTOR, required=False, section="advanced_settings"
+    ),
+    ATTR_HW_VERSION: PlatformField(
+        selector=TEXT_SELECTOR, required=False, section="advanced_settings"
+    ),
     ATTR_MODEL: PlatformField(selector=TEXT_SELECTOR, required=False),
     ATTR_MODEL_ID: PlatformField(selector=TEXT_SELECTOR, required=False),
     ATTR_CONFIGURATION_URL: PlatformField(
@@ -2725,6 +2729,19 @@ class MQTTSubentryFlowHandler(ConfigSubentryFlow):
             for field_key, value in data_schema.schema.items()
         }
 
+    @callback
+    def get_suggested_values_from_device_data(
+        self, data_schema: vol.Schema
+    ) -> dict[str, Any]:
+        """Get suggestions from device data based on the data schema."""
+        device_data = self._subentry_data["device"]
+        return {
+            field_key: self.get_suggested_values_from_device_data(value.schema)
+            if isinstance(value, section)
+            else device_data.get(field_key)
+            for field_key, value in data_schema.schema.items()
+        }
+
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None
     ) -> SubentryFlowResult:
@@ -2754,15 +2771,25 @@ class MQTTSubentryFlowHandler(ConfigSubentryFlow):
             reconfig=True,
         )
         if user_input is not None:
-            _, errors = validate_user_input(user_input, MQTT_DEVICE_PLATFORM_FIELDS)
+            new_device_data, errors = validate_user_input(
+                user_input, MQTT_DEVICE_PLATFORM_FIELDS
+            )
+            if "mqtt_settings" in user_input:
+                new_device_data["mqtt_settings"] = user_input["mqtt_settings"]
             if not errors:
-                self._subentry_data[CONF_DEVICE] = cast(MqttDeviceData, user_input)
+                self._subentry_data[CONF_DEVICE] = cast(MqttDeviceData, new_device_data)
                 if self.source == SOURCE_RECONFIGURE:
                     return await self.async_step_summary_menu()
                 return await self.async_step_entity()
-        data_schema = self.add_suggested_values_to_schema(
-            data_schema, device_data if user_input is None else user_input
-        )
+            data_schema = self.add_suggested_values_to_schema(
+                data_schema, device_data if user_input is None else user_input
+            )
+        elif self.source == SOURCE_RECONFIGURE:
+            data_schema = self.add_suggested_values_to_schema(
+                data_schema,
+                self.get_suggested_values_from_device_data(data_schema),
+            )
+
         return self.async_show_form(
             step_id=CONF_DEVICE,
             data_schema=data_schema,
diff --git a/homeassistant/components/mqtt/strings.json b/homeassistant/components/mqtt/strings.json
index 592ea8686e1..96b5bd15d28 100644
--- a/homeassistant/components/mqtt/strings.json
+++ b/homeassistant/components/mqtt/strings.json
@@ -134,20 +134,27 @@
           "data": {
             "name": "[%key:common::config_flow::data::name%]",
             "configuration_url": "Configuration URL",
-            "sw_version": "Software version",
-            "hw_version": "Hardware version",
             "model": "Model",
             "model_id": "Model ID"
           },
           "data_description": {
             "name": "The name of the manually added MQTT device.",
             "configuration_url": "A link to the webpage that can manage the configuration of this device. Can be either a 'http://', 'https://' or an internal 'homeassistant://' URL.",
-            "sw_version": "The software version of the device. E.g. '2025.1.0'.",
-            "hw_version": "The hardware version of the device. E.g. 'v1.0 rev a'.",
             "model": "E.g. 'Cleanmaster Pro'.",
             "model_id": "E.g. '123NK2PRO'."
           },
           "sections": {
+            "advanced_settings": {
+              "name": "Advanced device settings",
+              "data": {
+                "sw_version": "Software version",
+                "hw_version": "Hardware version"
+              },
+              "data_description": {
+                "sw_version": "The software version of the device. E.g. '2025.1.0'.",
+                "hw_version": "The hardware version of the device. E.g. 'v1.0 rev a'."
+              }
+            },
             "mqtt_settings": {
               "name": "MQTT settings",
               "data": {
diff --git a/tests/components/mqtt/test_config_flow.py b/tests/components/mqtt/test_config_flow.py
index 2177a7de8e1..12f77a95c48 100644
--- a/tests/components/mqtt/test_config_flow.py
+++ b/tests/components/mqtt/test_config_flow.py
@@ -4073,7 +4073,7 @@ async def test_subentry_reconfigure_update_device_properties(
         result["flow_id"],
         user_input={
             "name": "Beer notifier",
-            "sw_version": "1.1",
+            "advanced_settings": {"sw_version": "1.1"},
             "model": "Beer bottle XL",
             "model_id": "bn003",
             "configuration_url": "https://example.com",