diff --git a/homeassistant/components/smartthings/__init__.py b/homeassistant/components/smartthings/__init__.py
index e5351798219..a8d28e0503f 100644
--- a/homeassistant/components/smartthings/__init__.py
+++ b/homeassistant/components/smartthings/__init__.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 from collections.abc import Callable
+import contextlib
 from dataclasses import dataclass
 from http import HTTPStatus
 import logging
@@ -12,15 +13,17 @@ from aiohttp import ClientResponseError
 from pysmartthings import (
     Attribute,
     Capability,
+    ComponentStatus,
     Device,
     DeviceEvent,
+    Lifecycle,
     Scene,
     SmartThings,
     SmartThingsAuthenticationFailedError,
+    SmartThingsConnectionError,
     SmartThingsSinkError,
     Status,
 )
-from pysmartthings.models import Lifecycle
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
@@ -72,7 +75,7 @@ class FullDevice:
     """Define an object to hold device data."""
 
     device: Device
-    status: dict[str, dict[Capability | str, dict[Attribute | str, Status]]]
+    status: dict[str, ComponentStatus]
 
 
 type SmartThingsConfigEntry = ConfigEntry[SmartThingsData]
@@ -124,7 +127,9 @@ async def async_setup_entry(hass: HomeAssistant, entry: SmartThingsConfigEntry)
     client.refresh_token_function = _refresh_token
 
     def _handle_max_connections() -> None:
-        _LOGGER.debug("We hit the limit of max connections")
+        _LOGGER.debug(
+            "We hit the limit of max connections or we could not remove the old one, so retrying"
+        )
         hass.config_entries.async_schedule_reload(entry.entry_id)
 
     client.max_connections_reached_callback = _handle_max_connections
@@ -147,7 +152,10 @@ async def async_setup_entry(hass: HomeAssistant, entry: SmartThingsConfigEntry)
 
     if (old_identifier := entry.data.get(CONF_SUBSCRIPTION_ID)) is not None:
         _LOGGER.debug("Trying to delete old subscription %s", old_identifier)
-        await client.delete_subscription(old_identifier)
+        try:
+            await client.delete_subscription(old_identifier)
+        except SmartThingsConnectionError as err:
+            raise ConfigEntryNotReady("Could not delete old subscription") from err
 
     _LOGGER.debug("Trying to create a new subscription")
     try:
@@ -274,7 +282,8 @@ async def async_unload_entry(
     """Unload a config entry."""
     client = entry.runtime_data.client
     if (subscription_id := entry.data.get(CONF_SUBSCRIPTION_ID)) is not None:
-        await client.delete_subscription(subscription_id)
+        with contextlib.suppress(SmartThingsConnectionError):
+            await client.delete_subscription(subscription_id)
     return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
 
 
@@ -355,9 +364,7 @@ KEEP_CAPABILITY_QUIRK: dict[
 }
 
 
-def process_status(
-    status: dict[str, dict[Capability | str, dict[Attribute | str, Status]]],
-) -> dict[str, dict[Capability | str, dict[Attribute | str, Status]]]:
+def process_status(status: dict[str, ComponentStatus]) -> dict[str, ComponentStatus]:
     """Remove disabled capabilities from status."""
     if (main_component := status.get(MAIN)) is None:
         return status
diff --git a/homeassistant/components/smartthings/binary_sensor.py b/homeassistant/components/smartthings/binary_sensor.py
index 24249345080..ee68db49929 100644
--- a/homeassistant/components/smartthings/binary_sensor.py
+++ b/homeassistant/components/smartthings/binary_sensor.py
@@ -174,9 +174,7 @@ def get_main_component_category(
     device: FullDevice,
 ) -> Category | str:
     """Get the main component of a device."""
-    main = next(
-        component for component in device.device.components if component.id == MAIN
-    )
+    main = device.device.components[MAIN]
     return main.user_category or main.manufacturer_category
 
 
diff --git a/homeassistant/components/smartthings/entity.py b/homeassistant/components/smartthings/entity.py
index 12c07bea983..3314d4b868d 100644
--- a/homeassistant/components/smartthings/entity.py
+++ b/homeassistant/components/smartthings/entity.py
@@ -8,9 +8,9 @@ from pysmartthings import (
     Attribute,
     Capability,
     Command,
+    ComponentStatus,
     DeviceEvent,
     SmartThings,
-    Status,
 )
 
 from homeassistant.helpers.device_registry import DeviceInfo
@@ -38,7 +38,7 @@ class SmartThingsEntity(Entity):
         self.client = client
         self.capabilities = capabilities
         self.component = component
-        self._internal_state: dict[Capability | str, dict[Attribute | str, Status]] = {
+        self._internal_state: ComponentStatus = {
             capability: device.status[component][capability]
             for capability in capabilities
             if capability in device.status[component]
diff --git a/homeassistant/components/smartthings/event.py b/homeassistant/components/smartthings/event.py
index e22a32c7726..8b413f04713 100644
--- a/homeassistant/components/smartthings/event.py
+++ b/homeassistant/components/smartthings/event.py
@@ -22,10 +22,12 @@ async def async_setup_entry(
     """Add events for a config entry."""
     entry_data = entry.runtime_data
     async_add_entities(
-        SmartThingsButtonEvent(entry_data.client, device, component)
+        SmartThingsButtonEvent(
+            entry_data.client, device, device.device.components[component]
+        )
         for device in entry_data.devices.values()
-        for component in device.device.components
-        if Capability.BUTTON in component.capabilities
+        for component, capabilities in device.status.items()
+        if Capability.BUTTON in capabilities
     )
 
 
diff --git a/homeassistant/components/smartthings/manifest.json b/homeassistant/components/smartthings/manifest.json
index d7133ce7c6d..49de0c79ce7 100644
--- a/homeassistant/components/smartthings/manifest.json
+++ b/homeassistant/components/smartthings/manifest.json
@@ -30,5 +30,5 @@
   "iot_class": "cloud_push",
   "loggers": ["pysmartthings"],
   "quality_scale": "bronze",
-  "requirements": ["pysmartthings==2.7.4"]
+  "requirements": ["pysmartthings==3.0.0"]
 }
diff --git a/homeassistant/components/smartthings/valve.py b/homeassistant/components/smartthings/valve.py
index 3c401c087ec..4279d528f8b 100644
--- a/homeassistant/components/smartthings/valve.py
+++ b/homeassistant/components/smartthings/valve.py
@@ -47,8 +47,8 @@ class SmartThingsValve(SmartThingsEntity, ValveEntity):
         """Init the class."""
         super().__init__(client, device, {Capability.VALVE})
         self._attr_device_class = DEVICE_CLASS_MAP.get(
-            device.device.components[0].user_category
-            or device.device.components[0].manufacturer_category
+            device.device.components[MAIN].user_category
+            or device.device.components[MAIN].manufacturer_category
         )
 
     async def async_open_valve(self) -> None:
diff --git a/requirements_all.txt b/requirements_all.txt
index 9b856492754..7edd663ba89 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2313,7 +2313,7 @@ pysma==0.7.5
 pysmappee==0.2.29
 
 # homeassistant.components.smartthings
-pysmartthings==2.7.4
+pysmartthings==3.0.0
 
 # homeassistant.components.smarty
 pysmarty2==0.10.2
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 94d60c7b1a9..fafa1008c06 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1883,7 +1883,7 @@ pysma==0.7.5
 pysmappee==0.2.29
 
 # homeassistant.components.smartthings
-pysmartthings==2.7.4
+pysmartthings==3.0.0
 
 # homeassistant.components.smarty
 pysmarty2==0.10.2
diff --git a/tests/components/smartthings/__init__.py b/tests/components/smartthings/__init__.py
index ad09f1a7acf..fce344b57a7 100644
--- a/tests/components/smartthings/__init__.py
+++ b/tests/components/smartthings/__init__.py
@@ -3,7 +3,7 @@
 from typing import Any
 from unittest.mock import AsyncMock
 
-from pysmartthings.models import Attribute, Capability, DeviceEvent
+from pysmartthings import Attribute, Capability, DeviceEvent
 from syrupy import SnapshotAssertion
 
 from homeassistant.components.smartthings.const import MAIN
diff --git a/tests/components/smartthings/conftest.py b/tests/components/smartthings/conftest.py
index 761b65adc8a..a19c78dcc00 100644
--- a/tests/components/smartthings/conftest.py
+++ b/tests/components/smartthings/conftest.py
@@ -4,7 +4,7 @@ from collections.abc import Generator
 import time
 from unittest.mock import AsyncMock, patch
 
-from pysmartthings.models import (
+from pysmartthings import (
     DeviceResponse,
     DeviceStatus,
     LocationResponse,
diff --git a/tests/components/smartthings/test_init.py b/tests/components/smartthings/test_init.py
index c0d0b8b5840..16458007c29 100644
--- a/tests/components/smartthings/test_init.py
+++ b/tests/components/smartthings/test_init.py
@@ -8,9 +8,10 @@ from pysmartthings import (
     Capability,
     DeviceResponse,
     DeviceStatus,
+    Lifecycle,
     SmartThingsSinkError,
+    Subscription,
 )
-from pysmartthings.models import Lifecycle, Subscription
 import pytest
 from syrupy import SnapshotAssertion