diff --git a/client/src/ledger_app_clients/ethereum/eip712/InputData.py b/client/src/ledger_app_clients/ethereum/eip712/InputData.py
index 49c99cb..4981abd 100644
--- a/client/src/ledger_app_clients/ethereum/eip712/InputData.py
+++ b/client/src/ledger_app_clients/ethereum/eip712/InputData.py
@@ -10,6 +10,7 @@ import struct
 from client import keychain
 from client.client import EthAppClient, EIP712FieldType
 
+from ragger.firmware import Firmware
 
 # global variables
 app_client: EthAppClient = None
@@ -391,7 +392,7 @@ def next_timeout(_signum: int, _frame):
 
 
 def enable_autonext():
-    if app_client._client.firmware.device in ("stax", "flex"):
+    if app_client._client.firmware in (Firmware.STAX, Firmware.FLEX):
         delay = 1/3
     else:
         delay = 1/4
diff --git a/client/src/ledger_app_clients/ethereum/settings.py b/client/src/ledger_app_clients/ethereum/settings.py
index 5ab26d4..158a46c 100644
--- a/client/src/ledger_app_clients/ethereum/settings.py
+++ b/client/src/ledger_app_clients/ethereum/settings.py
@@ -11,31 +11,29 @@ class SettingID(Enum):
     DEBUG_DATA = auto()
 
 
-def get_device_settings(device: str) -> list[SettingID]:
-    if device == "nanos":
+def get_device_settings(firmware: Firmware) -> list[SettingID]:
+    if firmware == Firmware.NANOS:
         return [
             SettingID.NONCE,
             SettingID.DEBUG_DATA,
         ]
-    if device in ("nanox", "nanosp", "stax", "flex"):
-        return [
-            SettingID.VERBOSE_ENS,
-            SettingID.VERBOSE_EIP712,
-            SettingID.NONCE,
-            SettingID.DEBUG_DATA,
-        ]
-    return []
+    return [
+        SettingID.VERBOSE_ENS,
+        SettingID.VERBOSE_EIP712,
+        SettingID.NONCE,
+        SettingID.DEBUG_DATA,
+    ]
 
 
-def get_setting_per_page(device: str) -> int:
-    if device == "stax":
+def get_setting_per_page(firmware: Firmware) -> int:
+    if firmware == Firmware.STAX:
         return 3
     return 2
 
 
-def get_setting_position(device: str, setting: Union[NavInsID, SettingID]) -> tuple[int, int]:
-    settings_per_page = get_setting_per_page(device)
-    if device == "stax":
+def get_setting_position(firmware: Firmware, setting: Union[NavInsID, SettingID]) -> tuple[int, int]:
+    settings_per_page = get_setting_per_page(firmware)
+    if firmware == Firmware.STAX:
         screen_height = 672  # px
         header_height = 88  # px
         footer_height = 92  # px
@@ -47,15 +45,15 @@ def get_setting_position(device: str, setting: Union[NavInsID, SettingID]) -> tu
         option_offset = 420  # px
     usable_height = screen_height - (header_height + footer_height)
     setting_height = usable_height // settings_per_page
-    index_in_page = get_device_settings(device).index(SettingID(setting)) % settings_per_page
+    index_in_page = get_device_settings(firmware).index(SettingID(setting)) % settings_per_page
     return option_offset, header_height + (setting_height * index_in_page) + (setting_height // 2)
 
 
-def settings_toggle(fw: Firmware, nav: Navigator, to_toggle: list[SettingID]):
+def settings_toggle(firmware: Firmware, nav: Navigator, to_toggle: list[SettingID]):
     moves: list[Union[NavIns, NavInsID]] = list()
-    settings = get_device_settings(fw.device)
+    settings = get_device_settings(firmware)
     # Assume the app is on the home page
-    if fw.device.startswith("nano"):
+    if firmware.is_nano:
         moves += [NavInsID.RIGHT_CLICK] * 2
         moves += [NavInsID.BOTH_CLICK]
         for setting in settings:
@@ -65,12 +63,12 @@ def settings_toggle(fw: Firmware, nav: Navigator, to_toggle: list[SettingID]):
         moves += [NavInsID.BOTH_CLICK]  # Back
     else:
         moves += [NavInsID.USE_CASE_HOME_SETTINGS]
-        settings_per_page = get_setting_per_page(fw.device)
+        settings_per_page = get_setting_per_page(firmware)
         for setting in settings:
             setting_idx = settings.index(setting)
             if (setting_idx > 0) and (setting_idx % settings_per_page) == 0:
                 moves += [NavInsID.USE_CASE_SETTINGS_NEXT]
             if setting in to_toggle:
-                moves += [NavIns(NavInsID.TOUCH, get_setting_position(fw.device, setting))]
+                moves += [NavIns(NavInsID.TOUCH, get_setting_position(firmware, setting))]
         moves += [NavInsID.USE_CASE_SETTINGS_MULTI_PAGE_EXIT]
     nav.navigate(moves, screen_change_before_first_instruction=False)