diff --git a/Jenkinsfile_Common b/Jenkinsfile_Common
index 07f48eb..7df827c 100644
--- a/Jenkinsfile_Common
+++ b/Jenkinsfile_Common
@@ -30,15 +30,16 @@ def isRelease(versionParam) {
 }
 
 
-def handleSubmodules(isForcedToHead) {
+def handleSubmodules(versionParam) {
   println "init submodules..."
-  sh 'git submodule init'
-  if(isForcedToHead) {
-    println "setting submodule hashes to head..."
-    sh 'git submodule update --remote --rebase' // update all submodules to HEAD
+  sh 'git submodule update --init'
+  if(isRelease(versionparam)) {
+    println "set submodules to freezed state..."
+    sh 'git submodule update' // set all submodules to freezed commit
   }
   else {
-    sh 'git submodule update' // set all submodules to freezed commit
+    println "setting netmodule submodule hashes to head..."
+    sh 'git submodule update --remote --rebase meta-netmodule-*' // update our own submodules to HEAD
   }
   submoduleStatus = sh(returnStdout: true, script: "git submodule status").trim()  // print submodule hashes to jenkins log
   println "${submoduleStatus}"
diff --git a/Jenkinsfile_RamdiskImages b/Jenkinsfile_RamdiskImages
index f672d8e..832392b 100644
--- a/Jenkinsfile_RamdiskImages
+++ b/Jenkinsfile_RamdiskImages
@@ -17,7 +17,6 @@ pipeline {
     choice(name: 'IMAGE_TYPE', choices: ['lava', 'fct', 'minimal'], description: 'choose image type')
     string(name: 'RLS_VERSION', defaultValue: '', description: 'Set the version to build and use committed submodules')
     booleanParam(name: 'CLEAN_BUILD', defaultValue: false, description: 'clean all temp directories before build starts')
-    booleanParam(name: 'DO_UPDATE_TO_HEAD', defaultValue: false, description: 'update submodules to head')
   }
 
   environment {
@@ -50,7 +49,7 @@ pipeline {
 
           // Prepare Build Environment
           env.YOCTO_DEPLOYS = "${env.BUILD_DEPLOY_DIR}/${params.MACHINE}"
-          yoctocommon.handleSubmodules(params.DO_UPDATE_TO_HEAD)
+          yoctocommon.handleSubmodules("${params.RLS_VERSION}")
           version = yoctocommon.getVersionString("${params.RLS_VERSION}", "${params.IMAGE_TYPE}")
           env.BUILD_VERSION = "${version}"
           currentBuild.displayName = "${version}-${params.MACHINE}-${params.IMAGE_TYPE}" //replace Bitbake timestamp after building
@@ -112,7 +111,6 @@ def printJobParameters() {
     MACHINE        = ${params.MACHINE}\n\
     IMAGE_TYPE     = ${params.IMAGE_TYPE}\n\
     CLEAN_BUILD    = ${params.CLEAN_BUILD}\n\
-    UPDATE_TO_HEAD = ${params.DO_UPDATE_TO_HEAD}\n\
     RLS_VERSION    = ${params.RLS_VERSION}\n\
       --> version  = ${env.BUILD_VERSION}\n\
 ----------------------------------\n"
diff --git a/Jenkinsfile_mmcImages b/Jenkinsfile_mmcImages
index 55049e4..a97ab3e 100644
--- a/Jenkinsfile_mmcImages
+++ b/Jenkinsfile_mmcImages
@@ -17,7 +17,6 @@ pipeline {
     choice(name: 'IMAGE_TYPE', choices: ['dev', 'bootloader', 'release'], description: 'choose image type')
     string(name: 'RLS_VERSION', defaultValue: '', description: 'Set the version to build and use committed submodules')
     booleanParam(name: 'CLEAN_BUILD', defaultValue: false, description: 'clean all temp directories before build starts')
-    booleanParam(name: 'DO_UPDATE_TO_HEAD', defaultValue: false, description: 'update submodules to head')
   }
 
   environment {
@@ -50,7 +49,7 @@ pipeline {
 
           // Prepare Build Environment
           env.YOCTO_DEPLOYS = "${env.BUILD_DEPLOY_DIR}/${params.MACHINE}"
-          yoctocommon.handleSubmodules(params.DO_UPDATE_TO_HEAD)
+          yoctocommon.handleSubmodules("${params.RLS_VERSION}")
           version = yoctocommon.getVersionString("${params.RLS_VERSION}", "${params.IMAGE_TYPE}")
           env.BUILD_VERSION = "${version}"
           currentBuild.displayName = "${version}-${params.MACHINE}-${params.IMAGE_TYPE}" //replace Bitbake timestamp after building
@@ -113,7 +112,6 @@ def printJobParameters() {
     MACHINE        = ${params.MACHINE}\n\
     IMAGE_TYPE     = ${params.IMAGE_TYPE}\n\
     CLEAN_BUILD    = ${params.CLEAN_BUILD}\n\
-    UPDATE_TO_HEAD = ${params.DO_UPDATE_TO_HEAD}\n\
     RLS_VERSION    = ${params.RLS_VERSION}\n\
       --> version  = ${env.BUILD_VERSION}\n\
 ----------------------------------\n"
diff --git a/Jenkinsfile_sdk b/Jenkinsfile_sdk
index 8a2d086..5ad2862 100644
--- a/Jenkinsfile_sdk
+++ b/Jenkinsfile_sdk
@@ -16,7 +16,6 @@ pipeline {
     choice(name: 'MACHINE', choices: ['select...', 'am335x-nrhw20', 'am335x-nmhw21', 'imx8-nmhw23', 'am335x-nmhw24', 'am335x-hw25', 'am335x-hw26'], description: 'choose target platform')
     string(name: 'RLS_VERSION', defaultValue: '', description: 'Set the version to build and use committed submodules')
     booleanParam(name: 'CLEAN_BUILD', defaultValue: false, description: 'clean all temp directories before build starts')
-    booleanParam(name: 'DO_UPDATE_TO_HEAD', defaultValue: true, description: 'update submodules to head')
     booleanParam(name: 'BUILD_FROM_DEV_IMAGE', defaultValue: false, description: 'build SDK from dev image')
   }
 
@@ -51,7 +50,7 @@ pipeline {
 
           // Prepare Build Environment
           env.YOCTO_DEPLOYS = "${env.SHARED_BUILD}/tmp/deploy/sdk"
-          yoctocommon.handleSubmodules(params.DO_UPDATE_TO_HEAD)
+          yoctocommon.handleSubmodules("${params.RLS_VERSION}")
           version = yoctocommon.getVersionString("${params.RLS_VERSION}", "sdk")
           env.BUILD_VERSION = "${version}"
           currentBuild.displayName = "${version}-${params.MACHINE}-sdk" //replace Bitbake timestamp after building
@@ -116,7 +115,6 @@ def printJobParameters() {
 ----------------------------------\n\
     MACHINE         = ${params.MACHINE}\n\
     CLEAN_BUILD     = ${params.CLEAN_BUILD}\n\
-    UPDATE_TO_HEAD  = ${params.DO_UPDATE_TO_HEAD}\n\
     IS_NM_LINUX_SDK = ${env.IS_NM_LINUX_SDK}\n\
     RLS_VERSION     = ${params.RLS_VERSION}\n\
       --> version   = ${env.BUILD_VERSION}\n\
diff --git a/Jenkinsfile_update2head b/Jenkinsfile_update2head
index 528a049..6526c1f 100644
--- a/Jenkinsfile_update2head
+++ b/Jenkinsfile_update2head
@@ -62,11 +62,11 @@ pipeline {
 
 def printJobParameters() {
   println "----------------------------------\n\
-    Job Parameters:\n\
-  ----------------------------------\n\
-      UPDATE_NM_PARTS        = ${params.UPDATE_NM_PARTS}\n\
-      UPDATE_COMMUNITY_PARTS = ${params.UPDATE_COMMUNITY_PARTS}\n\
-  ----------------------------------\n"
+  Job Parameters:\n\
+----------------------------------\n\
+    UPDATE_NM_PARTS        = ${params.UPDATE_NM_PARTS}\n\
+    UPDATE_COMMUNITY_PARTS = ${params.UPDATE_COMMUNITY_PARTS}\n\
+----------------------------------\n"
 }
 
 def prepareUpdate() {