diff --git a/update_psa_impl b/update_psa_impl
index 9d7a859..7056f5d 100755
--- a/update_psa_impl
+++ b/update_psa_impl
@@ -86,20 +86,20 @@ update_psa() {
     # dateinen zu ueberpruefen
 
     local changed_files=$(changed_file_names)
-    local json_ini_files=$(filter_json_ini_files "$changed_files")
+    local files_to_copy=$(filter_changed_files "$changed_files" 'json|ini|hex')
 
     update_psa_report_changed_file_names $changed_files # message to ISMAS
 
     # check if *.conf and/or *.ini-files have to md5-sum as denoted
     # in update.conf
-    if ! check_md5_for_changed_json_and_ini_files "$json_ini_files" ; then
+    if ! check_md5_for_changed_json_and_ini_files "$files_to_copy" ; then
         local __r=$?
         log_error "$func:${LINENO}: new customer files wrong"
         revert_customer_repository
         exit $__r
     fi
     
-    if ! check_hardware_compatibility "$json_ini_files" ; then
+    if ! check_hardware_compatibility "$files_to_copy" ; then
         local __r=$?
         log_error "$func:${LINENO}: json/ini-files not fit for PSA"
         revert_customer_repository
@@ -107,7 +107,7 @@ update_psa() {
     fi
 
     # copy *.conf and/or *.ini-files to their corresponding system-directories
-    if ! copy $json_ini_files; then
+    if ! copy $files_to_copy; then
         local __r=$?
         log_error "$func:${LINENO}: copy operation failed"
         revert_customer_repository
@@ -167,20 +167,9 @@ update_psa() {
         log_error "$func:${LINENO}: cleanup_previous_version failed"
     fi
 
-    # TODO: nach (erfolgreichem) abschluss sollte man immer das aktuelle setting
-    # ans ISMAS schicken. ISMAS sollte immer wissen, was gerade auf dem 
-    # Automaten steht.
-        
     update_psa_cleanup $UPDATE_ISMAS_PROGRESS \
         $RC_SUCCESS "cleanup after psa update"
-    
-    update_psa_update_succeeded $UPDATE_SUCCEEDED \
-        $RC_SUCCESS "psa update succeeded"
-    
-    update_psa_update_succeeded $UPDATE_ACTIVATED \
-        $RC_SUCCESS "psa update activated"
-            
-    log_info "$func:${LINENO}: success"
+
     exit 0
 }