diff --git a/files/initrd/opt/arc/arc-functions.sh b/files/initrd/opt/arc/arc-functions.sh
index 610ce4f7..bfcb82ed 100755
--- a/files/initrd/opt/arc/arc-functions.sh
+++ b/files/initrd/opt/arc/arc-functions.sh
@@ -2164,13 +2164,16 @@ function decryptMenu() {
         dialog --backtitle "$(backtitle)" --colors --title "Arc Decrypt" \
           --msgbox "Decrypt successful: You can use Arc Patch." 0 0
         mv -f "${S_FILE_ARC}" "${S_FILE}"
+        writeConfigKey "arc.key" "${ARC_KEY}" "${USER_CONFIG_FILE}"
       else
         dialog --backtitle "$(backtitle)" --colors --title "Arc Decrypt" \
           --msgbox "Decrypt failed: Wrong Key for this Version." 0 0
+        writeConfigKey "arc.key" "" "${USER_CONFIG_FILE}"
       fi
     else
       dialog --backtitle "$(backtitle)" --colors --title "Arc Decrypt" \
         --msgbox "Decrypt failed: This will not work with the wrong Key." 0 0
+      writeConfigKey "arc.key" "" "${USER_CONFIG_FILE}"
     fi
   fi
   return
diff --git a/files/initrd/opt/arc/arc.sh b/files/initrd/opt/arc/arc.sh
index d26bf7be..4b92776e 100755
--- a/files/initrd/opt/arc/arc.sh
+++ b/files/initrd/opt/arc/arc.sh
@@ -63,12 +63,14 @@ fi
 ARCIPV6="$(readConfigKey "arc.ipv6" "${USER_CONFIG_FILE}")"
 ARCPATCH="$(readConfigKey "arc.patch" "${USER_CONFIG_FILE}")"
 BOOTIPWAIT="$(readConfigKey "arc.bootipwait" "${USER_CONFIG_FILE}")"
+CUSTOM="$(readConfigKey "arc.custom" "${USER_CONFIG_FILE}")"
 DIRECTBOOT="$(readConfigKey "arc.directboot" "${USER_CONFIG_FILE}")"
 EMMCBOOT="$(readConfigKey "arc.emmcboot" "${USER_CONFIG_FILE}")"
 HDDSORT="$(readConfigKey "arc.hddsort" "${USER_CONFIG_FILE}")"
 KERNEL="$(readConfigKey "arc.kernel" "${USER_CONFIG_FILE}")"
 KERNELLOAD="$(readConfigKey "arc.kernelload" "${USER_CONFIG_FILE}")"
 KERNELPANIC="$(readConfigKey "arc.kernelpanic" "${USER_CONFIG_FILE}")"
+ARC_KEY="$(readConfigKey "arc.key" "${USER_CONFIG_FILE}")"
 MACSYS="$(readConfigKey "arc.macsys" "${USER_CONFIG_FILE}")"
 ODP="$(readConfigKey "arc.odp" "${USER_CONFIG_FILE}")"
 OFFLINE="$(readConfigKey "arc.offline" "${USER_CONFIG_FILE}")"
@@ -79,7 +81,6 @@ SATACONTROLLER="$(readConfigKey "device.satacontroller" "${USER_CONFIG_FILE}")"
 SCSICONTROLLER="$(readConfigKey "device.sciscontroller" "${USER_CONFIG_FILE}")"
 RAIDCONTROLLER="$(readConfigKey "device.raidcontroller" "${USER_CONFIG_FILE}")"
 SASCONTROLLER="$(readConfigKey "device.sascontroller" "${USER_CONFIG_FILE}")"
-CUSTOM="$(readConfigKey "arc.custom" "${USER_CONFIG_FILE}")"
 
 # Get Config/Build Status
 CONFDONE="$(readConfigKey "arc.confdone" "${USER_CONFIG_FILE}")"
@@ -188,13 +189,25 @@ function arcModel() {
         [ -z "$(grep -w "${M}" "${S_FILE}")" ] && BETA="x" || BETA=""
       fi
       [ -z "$(grep -w "${A}" "${P_FILE}")" ] && COMPATIBLE=0
-      [ ${COMPATIBLE} -eq 1 ] && echo -e "${M} \"\t$(printf "\Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "${CPU}" "${A}" "${DTS}" "${ARC}" "${IGPUS}" "${HBAS}" "${M_2_CACHE}" "${M_2_STORAGE}" "${USBS}" "${BETA}")\" ">>"${TMP_PATH}/menu"
+      if [ -n "${ARC_KEY}" ]; then
+        [ ${COMPATIBLE} -eq 1 ] && echo -e "${M} \"\t$(printf "\Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "${CPU}" "${A}" "${DTS}" "${ARC}" "${IGPUS}" "${HBAS}" "${M_2_CACHE}" "${M_2_STORAGE}" "${USBS}" "${BETA}")\" ">>"${TMP_PATH}/menu"
+      else
+        [ ${COMPATIBLE} -eq 1 ] && echo -e "${M} \"\t$(printf "\Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "${CPU}" "${A}" "${DTS}" "${IGPUS}" "${HBAS}" "${M_2_CACHE}" "${M_2_STORAGE}" "${USBS}" "${BETA}")\" ">>"${TMP_PATH}/menu"
+      fi
     done  <<<$(cat "${TMP_PATH}/modellist")
-    dialog --backtitle "$(backtitle)" --title "DSM Model" --colors \
-      --cancel-label "Show all" --help-button --help-label "Exit" \
-      --extra-button --extra-label "Info" \
-      --menu "Choose Model for Loader (x = supported / + = need Addons) | Beta Models can have faulty Values.\n$(printf "\Zb%-16s\Zn \Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "Model" "CPU" "Platform" "DT" "Arc" "iGPU" "HBA" "M.2 Cache" "M.2 Volume" "USB Mount" "Beta")" 0 120 0 \
-      --file "${TMP_PATH}/menu" 2>"${TMP_PATH}/resp"
+    if [ -n "${ARC_KEY}" ]; then
+      dialog --backtitle "$(backtitle)" --title "DSM Model" --colors \
+        --cancel-label "Show all" --help-button --help-label "Exit" \
+        --extra-button --extra-label "Info" \
+        --menu "Choose Model for Loader (x = supported / + = need Addons) | Beta Models can have faulty Values.\n$(printf "\Zb%-16s\Zn \Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "Model" "CPU" "Platform" "DT" "Arc" "iGPU" "HBA" "M.2 Cache" "M.2 Volume" "USB Mount" "Beta")" 0 120 0 \
+        --file "${TMP_PATH}/menu" 2>"${TMP_PATH}/resp"
+    else
+      dialog --backtitle "$(backtitle)" --title "DSM Model" --colors \
+        --cancel-label "Show all" --help-button --help-label "Exit" \
+        --extra-button --extra-label "Info" \
+        --menu "Choose Model for Loader (x = supported / + = need Addons) | Beta Models can have faulty Values.\n$(printf "\Zb%-16s\Zn \Zb%-8s\Zn \Zb%-15s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-5s\Zn \Zb%-10s\Zn \Zb%-12s\Zn \Zb%-10s\Zn \Zb%-10s\Zn" "Model" "CPU" "Platform" "DT" "iGPU" "HBA" "M.2 Cache" "M.2 Volume" "USB Mount" "Beta")" 0 120 0 \
+        --file "${TMP_PATH}/menu" 2>"${TMP_PATH}/resp"
+    fi
     RET=$?
     case ${RET} in
       0) # ok-button
diff --git a/files/initrd/opt/arc/init.sh b/files/initrd/opt/arc/init.sh
index 6868d234..62febba3 100755
--- a/files/initrd/opt/arc/init.sh
+++ b/files/initrd/opt/arc/init.sh
@@ -47,6 +47,7 @@ initConfigKey "arc.ipv6" "false" "${USER_CONFIG_FILE}"
 initConfigKey "arc.kernel" "official" "${USER_CONFIG_FILE}"
 initConfigKey "arc.kernelload" "power" "${USER_CONFIG_FILE}"
 initConfigKey "arc.kernelpanic" "5" "${USER_CONFIG_FILE}"
+initConfigKey "arc.key" "" "${USER_CONFIG_FILE}"
 initConfigKey "arc.macsys" "hardware" "${USER_CONFIG_FILE}"
 initConfigKey "arc.odp" "false" "${USER_CONFIG_FILE}"
 initConfigKey "arc.offline" "false" "${USER_CONFIG_FILE}"