diff --git a/build.sh b/build.sh
index ed6e31e3ee..5200ed5155 100755
--- a/build.sh
+++ b/build.sh
@@ -32,6 +32,8 @@
 # 16 Jan 2019, 3d-gussner, Build_2, Added development check to modify 'Configuration.h' to prevent unwanted LCD messages that Firmware is uknown
 # 17 Jan 2019, 3d-gussner, Build_3, Check for OS Windows or Linux and use the right build enviroment
 # 10 Feb 2019, ropaha, Pull Request, Select variant from list while using build.sh
+# 10 Feb 2019, ropaha, change FW_DEV_VERSION automatically depending on FW_VERSION RC/BETA/ALPHA
+# 10 Feb 2019, 3d-gussner, 1st tests with english only 
 
 BUILD_ENV="1.0.1"
 SCRIPT_PATH="$( cd "$(dirname "$0")" ; pwd -P )"
@@ -62,8 +64,13 @@ else
 	VARIANT=$1
 fi
 
-# NOT IMPLEMENTED YET. Second argument defines if it is an english only version. Format EN_ONLY
-EN_ONLY=$2
+# NOT IMPLEMENTED YET. Second argument defines if it is an english only version. Known values EN_ONLY / / ALL
+if [ -z "$2" ] ; then
+	echo "Which lang-build do you want?"
+else
+	LANGUAGES=$2
+fi
+
 # Find firmware version in Configuration.h file and use it to generate the hex filename
 FW=$(grep --max-count=1 "\bFW_VERSION\b" Firmware/Configuration.h | sed -e's/  */ /g'|cut -d '"' -f2|sed 's/\.//g')
 # Find build version in Configuration.h file and use it to generate the hex filename
@@ -72,15 +79,6 @@ BUILD=$(grep --max-count=1 "\bFW_COMMIT_NR\b" Firmware/Configuration.h | sed -e'
 MOTHERBOARD=$(grep --max-count=1 "\bMOTHERBOARD\b" Firmware/variants/$VARIANT.h | sed -e's/  */ /g' |cut -d ' ' -f3)
 # Check development status
 DEV_CHECK=$(grep --max-count=1 "\bFW_VERSION\b" Firmware/Configuration.h | sed -e's/  */ /g'|cut -d '"' -f2|sed 's/\.//g'|cut -d '-' -f2)
-if [ "$DEV_CHECK" == "$FW" ] ; then
-	DEV_STATUS="GOLD"
-else 
-	if [[ "$DEV_CHECK" == "RC1"  ||  "$DEV_CHECK" == "RC2" ]] ; then
-		DEV_STATUS="RC"
-	else
-		DEV_STATUS="UNKNOWN"
-	fi
-fi
 
 # List few useful data
 echo
@@ -93,7 +91,7 @@ echo "DEV Status :" $DEV_STATUS
 echo "Motherboard:" $MOTHERBOARD
 echo "OS         :" $OS
 echo "OS type    :" $OSTYPE
-echo $2
+echo "Languages  :" $LANGUAGES
 
 #### Start prepare building
 
@@ -155,9 +153,33 @@ BUILD_PATH="$( pwd -P )"
 if [ ! -f "$SCRIPT_PATH/Firmware/Configuration_prusa.h" ]; then
     cp -f $SCRIPT_PATH/Firmware/variants/$VARIANT.h $SCRIPT_PATH/Firmware/Configuration_prusa.h || exit 8
 fi
-	#if [ ! -z "$EN_ONLY" ]; then
+#Prepare Configuration.h to use the correct FW_DEV_VERSION to prevent LCD messages when connecting with OctoPrint
+if [ "$DEV_CHECK" == "$FW" ] ; then
+	DEV_STATUS="GOLD"
+else 
+	if [[ "$DEV_CHECK" == "RC1"  ||  "$DEV_CHECK" == "RC2" ]] ; then
+		DEV_STATUS="RC"
+		sed -i -- 's/#define FW_DEV_VERSION FW_VERSION_UNKNOWN/#define FW_DEV_VERSION FW_VERSION_RC/g' $SCRIPT_PATH/Firmware/Configuration.h
+		
+	else
+		DEV_STATUS="UNKNOWN"
+	fi
+fi
+
+#Prepare english only or multilanguage version to be build
+if [ ! -z "$LANGUAGES" ] ; then
+	echo
+	echo "Multi-language firmware will be build"
+	echo
+else
+	echo
+	echo "English language firmware will be build"
+	echo
+fi
+
+
+#Set FW_DEV_VERSION to development status
 
-	#Set FW_DEV_VERSION to development status
 	
 #Check if compiler flags are set to Prusa specific needs for the rambo board.
 if [ $OS == "Windows_NT" ]; then
@@ -185,8 +207,9 @@ export ARDUINO=$BUILD_ENV_PATH
 echo $BUILD_ENV_PATH
 export BUILDER=$ARDUINO/arduino-builder
 
-sleep 5
-#read -p "Press any Enter..."
+echo
+read -t 10 -p "Press any Enter..."
+echo 
 
 if [ $OS == "Windows_NT" ]; then
 	echo "Start to build Prusa Firmware under Windows..."
@@ -242,6 +265,7 @@ echo ""
 echo "Restore platform.txt"
 echo ""
 cp -f $BUILD_ENV_PATH/portable/packages/$RAMBO_PLATFORM_FILE.bck $BUILD_ENV_PATH/portable/packages/$RAMBO_PLATFORM_FILE
+sed -i -- 's/#define FW_DEV_VERSION FW_VERSION_*/#define FW_DEV_VERSION FW_VERSION_UNKNOWN/g' $SCRIPT_PATH/Firmware/Configuration.h
 
 # Switch to hex path and list build files
 cd $SCRIPT_PATH