diff --git a/trunner/target/armv7a9.py b/trunner/target/armv7a9.py
index 9e4d44b51..97d41ab77 100644
--- a/trunner/target/armv7a9.py
+++ b/trunner/target/armv7a9.py
@@ -54,7 +54,7 @@ def __call__(self):
         """Loads plo image to RAM using gdb."""
 
         # after reboot we need to wait for smt2 device
-        wait_for_vid_pid(vid=0x0403, pid=0x6014, timeout=5)
+        wait_for_vid_pid(vid=0x0403, pid=0x6014, timeout=5, device="smt2")
 
         with self.gdbserver.run():
             try:
diff --git a/trunner/tools/phoenix.py b/trunner/tools/phoenix.py
index d09de1679..3c605c996 100644
--- a/trunner/tools/phoenix.py
+++ b/trunner/tools/phoenix.py
@@ -6,31 +6,31 @@
 import pexpect
 
 from trunner.harness import ProcessError
+from trunner.dut import PortNotFound
 from serial.tools import list_ports
 from contextlib import contextmanager
 from .common import add_output_to_exception
 
 
-def wait_for_vid_pid(vid: int, pid: int, timeout=0):
+def wait_for_vid_pid(vid: int, pid: int, timeout: int = 0, device: str = ""):
     """wait for connected usb serial device with required vendor & product id"""
-
     asleep = 0
     found_ports = []
 
     while not found_ports:
-        time.sleep(0.01)
-        asleep += 0.01
-
         found_ports = [port for port in list_ports.comports() if port.pid == pid and port.vid == vid]
 
         if len(found_ports) > 1:
-            raise Exception(
-                "More than one plo port was found! Maybe more than one device is connected? Hint used to find port:"
-                f"{vid:04x}:{pid:04x}"
+            raise PortNotFound(
+                f"More than one {device} port was found! Maybe more than one device is connected?"
+                f"Hint used to find port: {vid:04x}:{pid:04x}"
             )
 
         if timeout and asleep >= timeout:
-            raise TimeoutError(f"Couldn't find plo USB device with vid/pid: '{vid:04x}:{pid:04x}'")
+            raise PortNotFound(f"Couldn't find {device} device! Hint used to find port:" f"{vid:04x}:{pid:04x}")
+
+        time.sleep(0.01)
+        asleep += 0.01
 
     return found_ports[0].device
 
@@ -115,7 +115,7 @@ def _reader(self):
 
     def _run(self):
         try:
-            self.port = wait_for_vid_pid(self.vid, self.pid, timeout=10)
+            self.port = wait_for_vid_pid(self.vid, self.pid, timeout=10, device="PLO")
         except (TimeoutError, Exception) as exc:
             raise PhoenixdError(str(exc)) from exc