diff --git a/backend/devices/models.py b/backend/devices/models.py
index 0b39744..f2a13db 100644
--- a/backend/devices/models.py
+++ b/backend/devices/models.py
@@ -141,6 +141,10 @@ class MelodyMainItem(BaseModel):
 
 class DeviceCreate(BaseModel):
     device_name: str = ""
+    # Console-only friendly name — set by staff, independent of the name the
+    # end user gave the device in the app. Never shown to app users, never
+    # synced from/to device_name. Falls back to device_name when empty.
+    console_name: str = ""
     device_photo: str = ""
     device_location: str = ""
     is_Online: bool = False
@@ -166,6 +170,7 @@ class DeviceCreate(BaseModel):
 
 class DeviceUpdate(BaseModel):
     device_name: Optional[str] = None
+    console_name: Optional[str] = None
     device_photo: Optional[str] = None
     device_location: Optional[str] = None
     is_Online: Optional[bool] = None
diff --git a/backend/devices/service.py b/backend/devices/service.py
index 81b623d..283f3c2 100644
--- a/backend/devices/service.py
+++ b/backend/devices/service.py
@@ -19,6 +19,7 @@ _TIMESTAMP_FIELD_NAMES = {
     "daySilenceFrom", "daySilenceTo",
     "nightSilenceFrom", "nightSilenceTo",
     "backlightTurnOnTime", "backlightTurnOffTime",
+    "subscrStart", "warrantyStart", "maintainedOn",
 }