diff --git a/backup-daemon/data/initramfs-tools/scripts/local-bottom/kybackup b/backup-daemon/data/initramfs-tools/scripts/local-bottom/kybackup
index d10c91f..597864c 100755
--- a/backup-daemon/data/initramfs-tools/scripts/local-bottom/kybackup
+++ b/backup-daemon/data/initramfs-tools/scripts/local-bottom/kybackup
@@ -115,6 +115,65 @@ loop_wait()
 	#done
 }
 
+get_is_990_9a0() {
+    local ret=false
+    # 匹配 kirin 990 5g, kirin990, kirin 9006c
+    if egrep -qi 'kirin.?9[09]0' /proc/cpuinfo; then
+        ret=true
+    elif egrep -qi 'PANGU' /proc/cpuinfo; then
+        ret=true
+
+    fi
+    echo $ret
+}
+is_990_9a0=$(get_is_990_9a0)
+
+factory_restore_warnning()
+{
+  if [ x${is_990_9a0} == x"true" ]; then
+    local is_sure=
+    while :
+    do
+    if plymouth_is_running; then
+        myoutput "You are doing factory restoration. Are you sure to continue? [y/n]" "正在准备进行出厂还原操作，是否继续？[y/n]"
+        is_sure=$(/bin/plymouth watch-keystroke)
+        echo is_sure=$is_sure
+        case $is_sure in
+        y|Y)
+            break;;
+        n|N)
+            # 注意，reboot重启不了，可用reboot -f
+            reboot -f;;
+        *) ;;
+        esac
+    fi
+    done
+  fi
+}
+
+factory_restore_warnning_again()
+{
+  if [ x${is_990_9a0} == x"true" ]; then
+    local is_sure=
+    while :
+    do
+    if plymouth_is_running; then
+        myoutput "Please confirm again whether to restore the system to factory defaults. Are you sure to continue? [y/n]" "请再一次确认是否进行系统出厂还原，是否继续？[y/n]"
+        is_sure=$(/bin/plymouth watch-keystroke)
+        echo is_sure=$is_sure
+        case $is_sure in
+        y|Y)
+            break;;
+        n|N)
+            # 注意，reboot重启不了，可用reboot -f
+            reboot -f;;
+        *) ;;
+        esac
+    fi
+    done
+  fi
+}
+
 restore_warnning()
 {
     local is_sure=
@@ -328,7 +387,9 @@ if [ "$NEED_BACKUP" = "y" ]; then
 fi
 
 if [ "$NEED_RESTORE" = "y" ]; then
+	factory_restore_warnning
 	restore_warnning
+	factory_restore_warnning_again
 	#如果没有${rootmnt}/etc/fstab，则系统坏了，应该能还原，但需要在下一个版本中支持。
 	if [ ! -e ${rootmnt}/etc/fstab ]; then
 	    if [ ! -e /etc/fstab-backup ]; then
@@ -396,7 +457,9 @@ fi
 
 
 if [ "$NEED_ROLLBACK" = "y" ]; then
+	factory_restore_warnning
 	restore_warnning
+	factory_restore_warnning_again
 	#如果没有${rootmnt}/etc/fstab，则系统坏了，应该能还原，但需要在下一个版本中支持。
 	if [ ! -e ${rootmnt}/etc/fstab ]; then
 	    if [ ! -e /etc/fstab-backup ]; then