On S30+ feature phones, the menu interface is simplified. If holding Power + Volume Up brings you to a "Test Mode" screen, try Power + Volume Down, or simply perform the hardware reset while the phone is on the lock screen (some models allow a reset via the emergency dialer or by entering a specific code like *#7370# ).
def unlock_device(self): # Use subprocess to run a command to unlock the device subprocess.check_call(["fastboot", "oem", "unlock"]) nokia ta 1325 hard reset unlock tool