diff --git a/adm/sms_admin/ajax.hp_chk.php b/adm/sms_admin/ajax.hp_chk.php
index 8fe487d00..b1c303565 100644
--- a/adm/sms_admin/ajax.hp_chk.php
+++ b/adm/sms_admin/ajax.hp_chk.php
@@ -10,9 +10,7 @@ if( !function_exists('json_encode') ) {
     }
 }
 
-if( $auth_check = ajax_auth_check($auth[$sub_menu], "r") ){
-    die("{\"error\":\"$auth_check\"}");
-}
+ajax_auth_check($auth[$sub_menu], "r");
 
 $err = '';
 $arr_ajax_msg = array();
diff --git a/adm/sms_admin/ajax.sms_write_form.php b/adm/sms_admin/ajax.sms_write_form.php
index 740ca3c46..e82a01cef 100644
--- a/adm/sms_admin/ajax.sms_write_form.php
+++ b/adm/sms_admin/ajax.sms_write_form.php
@@ -10,9 +10,7 @@ if( !function_exists('json_encode') ) {
     }
 }
 
-if( $auth_check = ajax_auth_check($auth[$sub_menu], "r") ){
-    die("{\"error\":\"$auth_check\"}");
-}
+ajax_auth_check($auth[$sub_menu], "r");
 
 $page_size = 6;
 
diff --git a/adm/sms_admin/ajax.sms_write_level.php b/adm/sms_admin/ajax.sms_write_level.php
index d5521efcc..90684c5b2 100644
--- a/adm/sms_admin/ajax.sms_write_level.php
+++ b/adm/sms_admin/ajax.sms_write_level.php
@@ -10,9 +10,7 @@ if( !function_exists('json_encode') ) {
     }
 }
 
-if( $auth_check = ajax_auth_check($auth[$sub_menu], "r") ){
-    die("{\"error\":\"$auth_check\"}");
-}
+ajax_auth_check($auth[$sub_menu], "r");
 
 $lev = array();
 
diff --git a/adm/sms_admin/ajax.sms_write_person.php b/adm/sms_admin/ajax.sms_write_person.php
index 57c76d126..686f4a8fa 100644
--- a/adm/sms_admin/ajax.sms_write_person.php
+++ b/adm/sms_admin/ajax.sms_write_person.php
@@ -5,9 +5,7 @@ include_once("./_common.php");
 $page_size = 10;
 $colspan = 5;
 
-if( $auth_check = ajax_auth_check($auth[$sub_menu], "r") ){
-    die("{\"error\":\"$auth_check\"}");
-}
+auth_check($auth[$sub_menu], "r");
 
 $g5['title'] = "휴대폰번호 관리";
 
diff --git a/adm/sms_admin/member_update_run.php b/adm/sms_admin/member_update_run.php
index 8d24ff329..323cbc9e0 100644
--- a/adm/sms_admin/member_update_run.php
+++ b/adm/sms_admin/member_update_run.php
@@ -10,7 +10,11 @@ if( !function_exists('json_encode') ) {
     }
 }
 
-auth_check($auth[$sub_menu], "w");
+if( $mtype == "json" ){
+    ajax_auth_check($auth[$sub_menu], "w");
+} else {
+    auth_check($auth[$sub_menu], "w");
+}
 
 $count      = 0;
 $hp_yes     = 0;
diff --git a/adm/sms_admin/sms_write.php b/adm/sms_admin/sms_write.php
index 4123546d9..c43d3d502 100644
--- a/adm/sms_admin/sms_write.php
+++ b/adm/sms_admin/sms_write.php
@@ -452,7 +452,7 @@ hp_list.options[hp_list.length] = new Option(item, value);
 <?php
 if ($fo_no) {
     $row = sql_fetch("select * from {$g5['sms5_form_table']} where fo_no='$fo_no'");
-    $fo_content = str_replace("\r\n", "\\n", $row['fo_content']);
+    $fo_content = str_replace(array("\r\n","\n"), "\\n", $row['fo_content']);
     echo "add(\"$fo_content\");";
 }
 ?>
@@ -472,7 +472,7 @@ if ($wr_no)
     echo "var hp_list = document.getElementById('hp_list');\n";
     //echo "add(\"$row[wr_message]\");\n";
     $wr_message = str_replace('"', '\"', $row['wr_message']);
-    $wr_message = str_replace("\r\n", "\\n", $wr_message);
+    $wr_message = str_replace(array("\r\n","\n"), "\\n", $wr_message);
     echo "add(\"$wr_message\");\n";
     echo "document.getElementById('wr_reply').value = '{$row['wr_reply']}';\n";
 
diff --git a/adm/sms_admin/sms_write_send.php b/adm/sms_admin/sms_write_send.php
index 6eb1770e9..d11a5b0fd 100644
--- a/adm/sms_admin/sms_write_send.php
+++ b/adm/sms_admin/sms_write_send.php
@@ -134,7 +134,7 @@ $SMS = new SMS5;
 $SMS->SMS_con($config['cf_icode_server_ip'], $config['cf_icode_id'], $config['cf_icode_pw'], $config['cf_icode_server_port']);
 
 $reply = str_replace('-', '', trim($wr_reply));
-$wr_message = str_replace('\r\n', PHP_EOL, $wr_message); // common.php 에서 mysql_real_escape_string 함수로 인해 수정
+$wr_message = conv_unescape_nl($wr_message);
 
 $result = $SMS->Add($list, $reply, '', '', $wr_message, $booking, $wr_total);
 
@@ -200,7 +200,7 @@ if ($result)
 
             $log = array_shift($SMS->Log);
 
-            sql_query("insert into {$g5['sms5_history_table']} set wr_no='$wr_no', wr_renum=0, bg_no='{$row['bg_no']}', mb_id='{$row['mb_id']}', bk_no='{$row['bk_no']}', hs_name='".addslashes($row['bk_name'])."', hs_hp='{$row['bk_hp']}', hs_datetime='".G5_TIME_YMDHIS."', hs_flag='$hs_flag', hs_code='$hs_code', hs_memo='".addslashes($hs_memo)."', hs_log='".addslashes(stripslashes($log))."'");
+            sql_query("insert into {$g5['sms5_history_table']} set wr_no='$wr_no', wr_renum=0, bg_no='{$row['bg_no']}', mb_id='{$row['mb_id']}', bk_no='{$row['bk_no']}', hs_name='".addslashes($row['bk_name'])."', hs_hp='{$row['bk_hp']}', hs_datetime='".G5_TIME_YMDHIS."', hs_flag='$hs_flag', hs_code='$hs_code', hs_memo='".addslashes($hs_memo)."', hs_log='".addslashes($log)."'");
         }
         $SMS->Init(); // 보관하고 있던 결과값을 지웁니다.
 
diff --git a/plugin/sms5/sms5.lib.php b/plugin/sms5/sms5.lib.php
index 5185bbb14..ea587384a 100644
--- a/plugin/sms5/sms5.lib.php
+++ b/plugin/sms5/sms5.lib.php
@@ -68,19 +68,19 @@ function ajax_auth_check($auth, $attr)
     if ($is_admin == 'super') return;
 
     if (!trim($auth))
-        return '이 메뉴에는 접근 권한이 없습니다.\\n\\n접근 권한은 최고관리자만 부여할 수 있습니다.';
+        die("{\"error\":\"이 메뉴에는 접근 권한이 없습니다.\\n\\n접근 권한은 최고관리자만 부여할 수 있습니다.\"}");
 
     $attr = strtolower($attr);
 
     if (!strstr($auth, $attr)) {
         if ($attr == 'r')
-            return '읽을 권한이 없습니다.';
+            die("{\"error\":\"읽을 권한이 없습니다.\"}");
         else if ($attr == 'w')
-            return '입력, 추가, 생성, 수정 권한이 없습니다.';
+            die("{\"error\":\"입력, 추가, 생성, 수정 권한이 없습니다.\"}");
         else if ($attr == 'd')
-            return '삭제 권한이 없습니다.';
+            die("{\"error\":\"삭제 권한이 없습니다.\"}");
         else
-            return '속성이 잘못 되었습니다.';
+            die("{\"error\":\"속성이 잘못 되었습니다.\"}");
     }
 }
 
diff --git a/plugin/sms5/write_update.php b/plugin/sms5/write_update.php
index ec105c3b0..a25e50b7b 100644
--- a/plugin/sms5/write_update.php
+++ b/plugin/sms5/write_update.php
@@ -91,7 +91,8 @@ if ($mh_by && $mh_bm && $mh_bd && $mh_bh && $mh_bi) {
 $SMS = new SMS5;
 $SMS->SMS_con($config['cf_icode_server_ip'], $config['cf_icode_id'], $config['cf_icode_pw'], $config['cf_icode_server_port']);
 
-$wr_message = str_replace('\r\n', PHP_EOL, $wr_message); // common.php 에서 mysql_real_escape_string 함수로 인해 수정
+$mh_message = conv_unescape_nl($mh_message);
+
 $result = $SMS->Add($mh_hp, $mh_reply, '', '', $mh_message, $booking, $total);
 
 $is_success = null;