diff --git a/src/agent_gsm.py b/src/agent_gsm.py
index d6da42f..a7f95d3 100644
--- a/src/agent_gsm.py
+++ b/src/agent_gsm.py
@@ -46,6 +46,9 @@ CACHE = utils_cache.InfoCache(None)
 # Backend instance
 BACKEND : utils_qualtest.QualtestBackend = None
 
+# ANalyzer binaries found or not ?
+VOICE_QUALITY_AVAILABLE = False
+
 def remove_oldest_log_audio():
     list_of_files = os.listdir(LOG_AUDIO_DIR)
     if len(list_of_files) > 20:
@@ -126,7 +129,10 @@ def run_analyze(file_test: str, file_reference: str, number: str) -> bool:
     global CALL_COUNTER
 
     result = False
-
+    if not VOICE_QUALITY_AVAILABLE:
+        utils.log('Voice quality analyzers are not available, skipping analysis.')
+        return
+        
     if file_test.exists():
         # Wait 5 seconds to give a chance to flush recorded file
         time.sleep(5.0)
@@ -491,7 +497,7 @@ if __name__ == '__main__':
 
 
     # Update path to pvqa/aqua-wb
-    utils_sevana.find_binaries(DIR_PROJECT / 'bin')
+    VOICE_QUALITY_AVAILABLE = utils_sevana.find_binaries(DIR_PROJECT / 'bin')
 
     # Load latest licenses & configs - this requires utils_sevana.find_binaries() to be called before
     # utils_sevana.load_config_and_licenses(config['backend'])
diff --git a/src/bt_controller.py b/src/bt_controller.py
index a13176a..fe7aca0 100644
--- a/src/bt_controller.py
+++ b/src/bt_controller.py
@@ -14,7 +14,7 @@ class Bluetoothctl:
     def __init__(self):
         out = subprocess.check_output("/usr/sbin/rfkill unblock bluetooth", shell = True)
         # print("Bluetoothctl")
-        self.child = pexpect.spawn("/usr/bin/bluetoothctl", echo = False)
+        self.child = pexpect.spawn("/usr/bin/sudo /usr/bin/bluetoothctl", echo = False)
 
     def get_output(self, command, pause = 0):
         """Run a command in bluetoothctl prompt, return output as a list of lines."""
diff --git a/src/utils_sevana.py b/src/utils_sevana.py
index fbbde21..23ffa9d 100644
--- a/src/utils_sevana.py
+++ b/src/utils_sevana.py
@@ -81,7 +81,7 @@ def load_config_and_licenses(server: str):
     except Exception as e:
         utils.log_error(f'Failed to fetch new licenses and config. Skipping it.')
 
-def find_binaries(bin_directory: Path, license_server: str = None):
+def find_binaries(bin_directory: Path, license_server: str = None) -> bool:
     # Update path to pvqa/aqua-wb
     global PVQA_CFG_PATH, PVQA_LIC_PATH, AQUA_LIC_PATH, PVQA_PATH, AQUA_PATH, PVQA_CMD, AQUA_CMD, SILER_PATH, SPEECH_DETECTOR_PATH
 
@@ -109,16 +109,16 @@ def find_binaries(bin_directory: Path, license_server: str = None):
         PVQA_CFG_PATH = Path(utils.get_script_path()) / 'pvqa.cfg'
     
     if not PVQA_CFG_PATH.exists():
-        utils.log_error(f'Failed to find pvqa config. Exiting.')
-        sys.exit(1)
+        utils.log_error(f'Failed to find pvqa config.')
+        return False
 
     if not AQUA_PATH.exists():
-        utils.log_error(f'Failed to find aqua-wb binary. Exiting.')
-        sys.exit(1)
+        utils.log_error(f'Failed to find aqua-wb binary.')
+        return False
 
     if not SILER_PATH.exists():
-        utils.log_error(f'Failed to find silence_eraser binary. Exiting.')
-        sys.exit(1)
+        utils.log_error(f'Failed to find silence_eraser binary..')
+        return False
 
     if license_server is not None:
         AQUA_LIC_PATH = '"license://' + license_server + '"'
@@ -128,16 +128,17 @@ def find_binaries(bin_directory: Path, license_server: str = None):
         if not PVQA_LIC_PATH.exists():
             PVQA_LIC_PATH = Path(utils.get_script_path()) / 'pvqa.lic'
         if not PVQA_LIC_PATH.exists():
-            utils.log_error(f'Failed to find pvqa license. Exiting.')
-            sys.exit(1)
+            utils.log_error(f'Failed to find pvqa license.')
+            return False
 
     if not AQUA_LIC_PATH.exists():
         AQUA_LIC_PATH = Path(utils.get_script_path()) / 'aqua-wb.lic'
         if not AQUA_LIC_PATH.exists():
-            utils.log_error(f'Failed to find AQuA license. Exiting.')
-            sys.exit(1)
+            utils.log_error(f'Failed to find AQuA license.')
+            return False
 
     utils.log(f'  Found all analyzers.')
+    return True
 
 
 def speech_detector(test_path: str):