diff --git a/android_tv_rc/adb_client.py b/android_tv_rc/adb_client.py
index 6b26fca..5880730 100644
--- a/android_tv_rc/adb_client.py
+++ b/android_tv_rc/adb_client.py
@@ -760,6 +760,8 @@ def send_keyevent_input(self, keycode: KeyCodes, long_press: bool=False):
             keycode (KeyCode): the keycode to send, table of key codes: https://www.temblast.com/ref/akeyscode.htm
             long_press (bool): specify if simulate a long press for the key or not. Defaults to False.
         """
+        if self.__selected_device is None:
+            return
         command = f'input keyevent {keycode.name}'
         if long_press:
             command += ' --longpress'
@@ -775,5 +777,7 @@ def send_text_input(self, text: str, encode_spaces: bool=True):
             text (str): the text string to send.
             encode_spaces (bool): specify if spaces should be replaced by `%s` or not. Defaults to True.
         """
+        if self.__selected_device is None:
+            return
         processed_text = text.replace(' ', '%s') if encode_spaces else text
         self.execute_shell_command(f'input text {processed_text}')