diff --git a/dbus_service.py b/dbus_service.py
index 24b33d8..c5fb66b 100644
--- a/dbus_service.py
+++ b/dbus_service.py
@@ -112,7 +112,7 @@ def __init__(
         self._dbusservice.add_path("/Connected", 1)
 
         self._dbusservice.add_path("/Latency", None)
-        self._dbusservice.add_path("/FirmwareVersion", 0.1)
+        self._dbusservice.add_path("/FirmwareVersion", read_version('version.txt'))
         self._dbusservice.add_path("/HardwareVersion", 0)
         self._dbusservice.add_path("/Position", self.acposition)  # normaly only needed for pvinverter
         self._dbusservice.add_path("/Serial", self._get_serial(self.pvinverternumber))
diff --git a/helpers.py b/helpers.py
index 9c2d4a7..0017f93 100644
--- a/helpers.py
+++ b/helpers.py
@@ -6,6 +6,7 @@
 # system imports
 import functools
 import time
+import os
 
 # our imports:
 import logging
@@ -124,3 +125,15 @@ def wrapped_func(*args, **kwargs):
         logging.debug(f"function {func.__name__} finished in {round(elapsed_time * 1000)} ms")
         return result
     return wrapped_func
+
+def read_version(file_name):
+    try:
+        current_dir = os.path.dirname(os.path.abspath(__file__))
+        file_path = os.path.join(current_dir, file_name)
+        with open(file_path, 'r') as file:
+            line = file.readline()
+            version = line.split(':')[-1].strip()
+            return version
+    except FileNotFoundError:
+        logging.error(f"File {file_name} not found in the current directory.")
+        return 0.1
\ No newline at end of file
diff --git a/install.sh b/install.sh
index ff317f6..c93d1a7 100755
--- a/install.sh
+++ b/install.sh
@@ -14,6 +14,15 @@ if [ -f $SCRIPT_DIR/current.log ]; then
     rm $SCRIPT_DIR/current.log*  
 fi 
 
+# check if version.txt exists and is larger than 2.0.0
+if [ -f $SCRIPT_DIR/version.txt ] && 
+    ( [ "$(grep -o 'Version: [^ ]*' version.txt | cut -d' ' -f2)" = "2.0.0" ] || 
+    [ "$(grep -o 'Version: [^ ]*' version.txt | cut -d' ' -f2)" \> "2.0.0" ] ); then
+    # delete old dbus-opendtu.py file
+    if [ -f $SCRIPT_DIR/dbus-opendtu.py ]; then  
+        rm $SCRIPT_DIR/dbus-opendtu.py 
+    fi 
+fi
 
 # set permissions for script files
 chmod a+x $SCRIPT_DIR/restart.sh
diff --git a/service/run b/service/run
index ee967be..b707432 100644
--- a/service/run
+++ b/service/run
@@ -2,11 +2,11 @@
 #Script Directory
 SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 #Define the version filename
-FILENAME=$(realpath $SCRIPT_DIR/../version.txt)
+CODE_VERSION_FILE=$(realpath $SCRIPT_DIR/../version.txt)
 exec 2>&1
 #Check if the file exists
-if [ -f "$FILENAME" ]; then
+if [ -f "$CODE_VERSION_FILE" ]; then
     #If the file exists, print its contents to stdout
-    cat "$FILENAME"
+    cat "$CODE_VERSION_FILE"
 fi
-python $(realpath $SCRIPT_DIR/../dbus_opendtu.py)
+python $(realpath $SCRIPT_DIR/../dbus_opendtu.py)
\ No newline at end of file
diff --git a/update.sh b/update.sh
index fb3cf7f..ade6546 100755
--- a/update.sh
+++ b/update.sh
@@ -1,6 +1,6 @@
 # Set the repository name and username
 REPO="henne49/dbus-opendtu"
-STARTUP_FILE="/data/home/root/rc.local"
+STARTUP_FILE="/data/rc.local"
 #!/bin/bash
 
 # Check if the file exists