diff --git a/Software/data_src/index.htm b/Software/data_src/index.htm
index a9bd44c..a24023a 100644
--- a/Software/data_src/index.htm
+++ b/Software/data_src/index.htm
@@ -534,7 +534,7 @@
           <div class="form-group row">
             <div class="custom-file">
               <input type="file" name="fw-update-file" class="custom-file-input" id="fw-update-file"
-                accept=".fw.bin,.fs.bin" required />
+                accept=".fw.bin,.fs.gz" required />
               <label class="custom-file-label" for="fw-update-file">Firmware-Update ausw&auml;hlen</label>
             </div>
           </div>
diff --git a/Software/data_src/version b/Software/data_src/version
index 96aeaa6..ea710ab 100644
--- a/Software/data_src/version
+++ b/Software/data_src/version
@@ -1 +1 @@
-1.01
\ No newline at end of file
+1.2
\ No newline at end of file
diff --git a/Software/prepare_littlefs.py b/Software/prepare_littlefs.py
index 346b464..7ab9722 100644
--- a/Software/prepare_littlefs.py
+++ b/Software/prepare_littlefs.py
@@ -100,7 +100,17 @@ def gzip_webfiles(source, target, env):
         print('GZIP: Failure/Incomplete.\n')
     else:
         print('GZIP: Compressed correctly.\n')
+
+    return
  
+def gzip_binffiles(source, target, env):
+    littlefsbin = target[0].get_abspath()
+    targetbin = os.path.join(os.path.dirname(littlefsbin), 'filesystem.fs')
+    shutil.copyfile(littlefsbin, targetbin)
+    gzip_file(targetbin, os.path.join(str(targetbin) + '.gz'))
+    os.remove(targetbin)
+    return
 
 # IMPORTANT, this needs to be added to call the routine
 env.AddPreAction('$BUILD_DIR/littlefs.bin', gzip_webfiles)
+env.AddPostAction('$BUILD_DIR/littlefs.bin', gzip_binffiles)
diff --git a/Software/src/common.h b/Software/src/common.h
index ebc391c..35611f4 100644
--- a/Software/src/common.h
+++ b/Software/src/common.h
@@ -29,7 +29,7 @@
 #define SW_VERSION_MAJOR 1
 #define SW_VERSION_MINOR 1
 
-#define FLASH_FS_VERSION 1.1
+#define FLASH_FS_VERSION 1.2
 
 #ifndef OTA_DELAY
 #define OTA_DELAY 50 // ticks -> 10ms / tick
diff --git a/Software/src/webui.cpp b/Software/src/webui.cpp
index ab77904..13b8c9c 100644
--- a/Software/src/webui.cpp
+++ b/Software/src/webui.cpp
@@ -22,7 +22,7 @@ void initWebUI()
 
   GetFlashVersion(globals.FlashVersion, sizeof(globals.FlashVersion));
 
-  if (!strcmp(globals.FlashVersion, QUOTE(FLASH_FS_VERSION)))
+  if (strcmp(globals.FlashVersion, QUOTE(FLASH_FS_VERSION)))
   {
     MaintainDTC(DTC_FLASHFS_VERSION_ERROR, DTC_WARN, true);
   }
@@ -361,7 +361,6 @@ void WebserverFirmwareUpdate_Callback(AsyncWebServerRequest *request, const Stri
   {
     Serial.println("Update");
     size_t content_len = request->contentLength();
-    // if filename includes spiffs, update the spiffs partition
     int cmd = (filename.indexOf(".fs") > -1) ? U_FS : U_FLASH;
     Update.runAsync(true);
     if (!Update.begin(content_len, cmd))