diff --git a/adm/member_form.php b/adm/member_form.php
index 2ea7dad6b..5ccb22501 100644
--- a/adm/member_form.php
+++ b/adm/member_form.php
@@ -57,38 +57,41 @@ else if ($w == 'u')
 else
     alert('제대로 된 값이 넘어오지 않았습니다.');
 
-$mailling_no_checked = '';
-$sms_no_checked = '';
-$open_no_checked = '';
-if ($mb['mb_mailling'] == 1) {
-    $mailling_checked = 'checked="checked"'; //메일수신
+// 휴대폰 본인확인
+$mb_hp_certify_yes  =  $mb['mb_hp_certify'] ? 'checked="checked"' : '';
+$mb_hp_certify_no   = !$mb['mb_hp_certify'] ? 'checked="checked"' : '';
+
+// 휴대폰 성인인증
+$mb_adult_yes       =  $mb['mb_adult']      ? 'checked="checked"' : '';
+$mb_adult_no        = !$mb['mb_adult']      ? 'checked="checked"' : '';
+
+//메일수신
+$mb_mailling_yes    =  $mb['mb_mailling']   ? 'checked="checked"' : '';
+$mb_mailling_no     = !$mb['mb_mailling']   ? 'checked="checked"' : '';
+
+// SMS 수신
+$mb_sms_yes         =  $mb['mb_sms']        ? 'checked="checked"' : '';
+$mb_sms_no          = !$mb['mb_sms']        ? 'checked="checked"' : '';
+
+// 정보 공개
+$mb_open_yes        =  $mb['mb_open']       ? 'checked="checked"' : '';
+$mb_open_no         = !$mb['mb_open']       ? 'checked="checked"' : '';
+
+if (isset($mb['mb_hp_certify'])) {
+    // 날짜시간형이라면 drop 시킴
+    if (preg_match("/-/", $mb['mb_hp_certify'])) { 
+        sql_query(" ALTER TABLE `{$g4['member_table']}` DROP `mb_hp_certify` ", false);
+    } 
 } else {
-    $mailing_checked = '';
-    $mailling_no_checked = 'checked="checked"';
+    sql_query(" ALTER TABLE `{$g4['member_table']}` ADD `mb_hp_certify` TINYINT NOT NULL DEFAULT '0' AFTER `mb_hp` ", false);
 }
 
-if ($mb['mb_sms']) {
-    $sms_checked = 'checked="checked"'; // SMS 수신
+if(isset($mb['mb_adult'])) {
+    sql_query(" ALTER TABLE `{$g4['member_table']}` CHANGE `mb_adult` `mb_adult` TINYINT NOT NULL DEFAULT '0' ", false);
 } else {
-    $sms_checked = '';
-    $sms_no_checked = 'checked="checked"';
+    sql_query(" ALTER TABLE `{$g4['member_table']}` ADD `mb_adult` TINYINT NOT NULL DEFAULT '0' AFTER `mb_hp_certify` ", false);
 }
 
-if ($mb['mb_open']) {
-    $open_checked = 'checked="checked"'; // 정보 공개
-} else {
-    $open_checked = '';
-    $open_no_checked = 'checked="checked"';
-}
-
-if(!isset($mb['mb_adult'])) {
-    sql_query(" ALTER TABLE `{$g4['member_table']}`
-                    ADD `mb_adult` ENUM('N', 'Y') NOT NULL DEFAULT 'N' AFTER `mb_birth`,
-                    ADD `mb_hp_certify` DATETIME NOT NULL DEFAULT '0000-00-00 00:00:00' AFTER `mb_lost_certify` ", false);
-}
-
-sql_query(" ALTER TABLE `{$g4['member_table']}` CHANGE `mb_adult` `mb_adult` ENUM('N','Y') NOT NULL DEFAULT 'N' ", false);
-
 if ($mb['mb_intercept_date']) $g4['title'] = "차단된 ";
 else $g4['title'] .= "";
 $g4['title'] .= '회원 '.$html_title;
@@ -141,10 +144,26 @@ include_once('./admin.head.php');
         <td><input type="text" name="mb_homepage" value="<?php echo $mb['mb_homepage'] ?>" id="mb_homepage" class="frm_input" maxlength="255" size="15"></td>
     </tr>
     <tr>
-        <th scope="row"><label for="mb_tel">전화번호</label></th>
-        <td><input type="text" name="mb_tel" value="<?php echo $mb['mb_tel'] ?>" id="mb_tel" class="frm_input" size="15" maxlength="20"></td>
         <th scope="row"><label for="mb_hp">휴대폰번호</label></th>
         <td><input type="text" name="mb_hp" value="<?php echo $mb['mb_hp'] ?>" id="mb_hp" class="frm_input" size="15" maxlength="20"></td>
+        <th scope="row"><label for="mb_tel">전화번호</label></th>
+        <td><input type="text" name="mb_tel" value="<?php echo $mb['mb_tel'] ?>" id="mb_tel" class="frm_input" size="15" maxlength="20"></td>
+    </tr>
+    <tr>
+        <th scope="row">휴대폰 본인확인</th>
+        <td>
+            <input type="radio" name="mb_hp_certify" value="1" id="mb_hp_certify_yes" <?php echo $mb_hp_certify_yes; ?>>
+            <label for="mb_hp_certify_yes">예</label>
+            <input type="radio" name="mb_hp_certify" value="0" id="mb_hp_certify_no" <?php echo $mb_hp_certify_no; ?>>
+            <label for="mb_hp_certify_no">아니오</label>
+        </td>
+        <th scope="row"><label for="mb_adult">휴대폰 성인인증</label></th>
+        <td>
+            <input type="radio" name="mb_adult" value="1" id="mb_adult_yes" <?php echo $mb_adult_yes; ?>>
+            <label for="mb_adult_yes">예</label>
+            <input type="radio" name="mb_adult" value="0" id="mb_adult_no" <?php echo $mb_adult_no; ?>>
+            <label for="mb_adult_no">아니오</label>
+        </td>
     </tr>
     <tr>
         <th scope="row"><label for="mb_zip1">주소</label></th>
@@ -181,25 +200,25 @@ include_once('./admin.head.php');
     <tr>
         <th scope="row">메일 수신</th>
         <td>
-            <input type="radio" name="mb_mailling" value="1" id="mb_mailling_yes" <?php echo $mailling_checked ?>>
+            <input type="radio" name="mb_mailling" value="1" id="mb_mailling_yes" <?php echo $mb_mailling_yes; ?>>
             <label for="mb_mailling_yes">예</label>
-            <input type="radio" name="mb_mailling" value="0" id="mb_mailling_no" <?php echo $mailling_no_checked ?>>
+            <input type="radio" name="mb_mailling" value="0" id="mb_mailling_no" <?php echo $mb_mailling_no; ?>>
             <label for="mb_mailling_no">아니오</label>
         </td>
         <th scope="row"><label for="mb_sms_yes">SMS 수신</label></th>
         <td>
-            <input type="radio" name="mb_sms" value="1" id="mb_sms_yes" <?php echo $sms_checked ?>>
+            <input type="radio" name="mb_sms" value="1" id="mb_sms_yes" <?php echo $mb_sms_yes; ?>>
             <label for="mb_sms_yes">예</label>
-            <input type="radio" name="mb_sms" value="0" id="mb_sms_no" <?php echo $sms_no_checked ?>>
+            <input type="radio" name="mb_sms" value="0" id="mb_sms_no" <?php echo $mb_sms_no; ?>>
             <label for="mb_sms_no">아니오</label>
         </td>
     </tr>
     <tr>
         <th scope="row"><label for="mb_open">정보 공개</label></th>
         <td colspan="3">
-            <input type="radio" name="mb_open" value="1" id="mb_open" <?php echo $open_checked ?>>
+            <input type="radio" name="mb_open" value="1" id="mb_open_yes" <?php echo $mb_open_yes; ?>>
             <label for="mb_open">예</label>
-            <input type="radio" name="mb_open" value="0" id="mb_open_no" <?php echo $open_no_checked ?>>
+            <input type="radio" name="mb_open" value="0" id="mb_open_no" <?php echo $mb_open_no; ?>>
             <label for="mb_open_no">아니오</label>
         </td>
     </tr>
diff --git a/adm/member_form_update.php b/adm/member_form_update.php
index d1be76a99..a081eef61 100644
--- a/adm/member_form_update.php
+++ b/adm/member_form_update.php
@@ -29,7 +29,9 @@ $sql_common = "  mb_name = '{$_POST['mb_name']}',
                  mb_email = '{$_POST['mb_email']}',
                  mb_homepage = '{$_POST['mb_homepage']}',
                  mb_tel = '{$_POST['mb_tel']}',
-                 mb_hp = '$mb_hp',
+                 mb_hp = '{$_POST['mb_hp']}',
+                 mb_hp_certify = '{$_POST['mb_hp_certify']}',
+                 mb_adult = '{$_POST['mb_adult']}',
                  mb_zip1 = '{$_POST['mb_zip1']}',
                  mb_zip2 = '{$_POST['mb_zip2']}',
                  mb_addr1 = '{$_POST['mb_addr1']}',
diff --git a/bbs/board.php b/bbs/board.php
index 67c83f706..bad53d552 100644
--- a/bbs/board.php
+++ b/bbs/board.php
@@ -59,12 +59,12 @@ if (isset($wr_id) && $wr_id) {
             alert('이 게시판은 휴대폰 본인확인 하신 회원님만 글읽기가 가능합니다.\\n\\n회원이시라면 로그인 후 이용해 보십시오.', './login.php?wr_id='.$wr_id.$qstr.'&amp;url='.urlencode(G4_BBS_URL.'/board.php?bo_table='.$bo_table.'&amp;wr_id='.$wr_id.$qstr));
         }
 
-        if ($board['bo_use_cert'] == 'cert' && hp_certify($member) != 'Y') {
+        if ($board['bo_use_cert'] == 'cert' && !$member['mb_hp_certfy']) {
             alert('이 게시판은 휴대폰 본인확인 하신 회원님만 글읽기가 가능합니다.\\n\\n회원정보 수정에서 휴대폰 본인확인을 해주시기 바랍니다.', G4_URL);
         }
 
-        if ($board['bo_use_cert'] == 'adult' && $member['mb_adult'] != 'Y') {
-            alert('이 게시판은 휴대폰 본인확인으로 성인 인증된 회원님만 글읽기가 가능합니다.\\n\\n성인인데 글읽기가 안된다면 회원정보 수정에서 휴대폰 본인확인을\\n다시 해주시기 바랍니다.', G4_URL);
+        if ($board['bo_use_cert'] == 'adult' && !$member['mb_adult']) {
+            alert('이 게시판은 휴대폰 본인확인으로 성인인증 된 회원님만 글읽기가 가능합니다.\\n\\n성인인데 글읽기가 안된다면 회원정보 수정에서 휴대폰 본인확인을\\n다시 해주시기 바랍니다.', G4_URL);
         }
     }
 
diff --git a/bbs/write.php b/bbs/write.php
index 27a7ac8c0..198e58be9 100644
--- a/bbs/write.php
+++ b/bbs/write.php
@@ -183,12 +183,12 @@ if ($config['cf_kcpcert_use'] != '' && !$is_admin) {
         alert('이 게시판은 휴대폰 본인확인 하신 회원님만 글쓰기가 가능합니다.\\n\\n회원이시라면 로그인 후 이용해 보십시오.', 'login.php?'.$qstr.'&amp;url='.urlencode($_SERVER['PHP_SELF'].'?bo_table='.$bo_table));
     }
 
-    if ($board['bo_use_cert'] == 'cert' && hp_certify($member) != 'Y') {
+    if ($board['bo_use_cert'] == 'cert' && !$member['mb_hp_certfy']) {
         alert('이 게시판은 휴대폰 본인확인 하신 회원님만 글쓰기가 가능합니다.\\n\\n회원정보 수정에서 휴대폰 본인확인을 해주시기 바랍니다.', G4_URL);
     }
 
-    if ($board['bo_use_cert'] == 'adult' && $member['mb_adult'] != 'Y') {
-        alert('이 게시판은 휴대폰 본인확인으로 성인 인증된 회원님만 글쓰기가 가능합니다.\\n\\n성인인데 글읽기가 안된다면 회원정보 수정에서 휴대폰 본인확인을\\n다시 해주시기 바랍니다.', G4_URL);
+    if ($board['bo_use_cert'] == 'adult' && !$member['mb_adult']) {
+        alert('이 게시판은 휴대폰 본인확인으로 성인인증 된 회원님만 글쓰기가 가능합니다.\\n\\n성인인데 글읽기가 안된다면 회원정보 수정에서 휴대폰 본인확인을\\n다시 해주시기 바랍니다.', G4_URL);
     }
 }
 
diff --git a/install/gnuboard4s.sql b/install/gnuboard4s.sql
index e0566f117..b80e3bd63 100644
--- a/install/gnuboard4s.sql
+++ b/install/gnuboard4s.sql
@@ -411,9 +411,10 @@ CREATE TABLE IF NOT EXISTS `g4s_member` (
   `mb_jumin` varchar(255) NOT NULL default '',
   `mb_sex` char(1) NOT NULL default '',
   `mb_birth` varchar(255) NOT NULL default '',
-  `mb_adult` enum('N','Y') NOT NULL default 'N',
   `mb_tel` varchar(255) NOT NULL default '',
   `mb_hp` varchar(255) NOT NULL default '',
+  `mb_hp_certify` tinyint(4) NOT NULL default '0',
+  `mb_adult` tinyint(4) NOT NULL default '0',
   `mb_zip1` char(3) NOT NULL default '',
   `mb_zip2` char(3) NOT NULL default '',
   `mb_addr1` varchar(255) NOT NULL default '',
@@ -430,7 +431,6 @@ CREATE TABLE IF NOT EXISTS `g4s_member` (
   `mb_email_certify` datetime NOT NULL default '0000-00-00 00:00:00',  
   `mb_memo` text NOT NULL,
   `mb_lost_certify` varchar(255) NOT NULL,
-  `mb_hp_certify` datetime NOT NULL default '0000-00-00 00:00:00',
   `mb_mailling` tinyint(4) NOT NULL default '0',
   `mb_sms` tinyint(4) NOT NULL default '0',
   `mb_open` tinyint(4) NOT NULL default '0',
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 71c9c08c9..65ae17d2f 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1982,11 +1982,4 @@ function hyphen_hp_number($hp)
     $hp = preg_replace("/[^0-9]/", "", $hp); 
     return preg_replace("/([0-9]{3})([0-9]{3,4})([0-9]{4})$/", "\\1-\\2-\\3", $hp);
 }
-
-
-// 휴대폰 본인확인을 받은 회원인지를 가린다.
-function hp_certify($member)
-{
-    return substr($member['mb_hp_certify'],0,1) == '0' ? 'N' : 'Y';
-}
 ?>
\ No newline at end of file
diff --git a/plugin/kcp/kcpcert.tail.skin.php b/plugin/kcp/kcpcert.tail.skin.php
index 815097eec..49621ee8b 100644
--- a/plugin/kcp/kcpcert.tail.skin.php
+++ b/plugin/kcp/kcpcert.tail.skin.php
@@ -3,27 +3,18 @@ if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
 
 // 휴대폰번호 포맷(010-0000-0000) 변경해서 기록
 // $reg_mb_hp 는 rigister_form_update.head.skin.php 파일
-$sql = " update {$g4['member_table']}
-            set mb_hp = '$reg_mb_hp'
-            where mb_id = '$mb_id' ";
+$sql = " update {$g4['member_table']} set mb_hp = '$reg_mb_hp' where mb_id = '$mb_id' ";
 sql_query($sql);
 
 /* =========================================================================== */
 /* = 휴대폰인증 및 성인인증                                                  = */
 /* =========================================================================== */
 if(get_session('ss_kcpcert_no')) {
-    $mb_adult = 'N';
-    if(get_session('ss_adult_check') == 'Y')
-        $mb_adult = 'Y';
-
-    $mb_hp_certify = get_session('ss_kcpcert_time');
     $sql = " update {$g4['member_table']}
-                set mb_hp_certify   = '$mb_hp_certify',
-                    mb_adult        = '$mb_adult'
+                set mb_hp_certify   = '".get_session('ss_hp_certify')."',
+                    mb_adult        = '".get_session('ss_adult')."'
                 where mb_id = '$mb_id' ";
     sql_query($sql);
 }
 /* =========================================================================== */
-
-//set_session('ss_adult_check', '');
 ?>
\ No newline at end of file
diff --git a/plugin/kcp/kcpcert_config.php b/plugin/kcp/kcpcert_config.php
index c5a7d5824..2bf313cbd 100644
--- a/plugin/kcp/kcpcert_config.php
+++ b/plugin/kcp/kcpcert_config.php
@@ -48,7 +48,4 @@ function f_get_parm_int( $val )
     return  $ret_val;
 }
 /* ============================================================================== */
-
-// ss_adult_check clear
-//if(get_session('ss_adult_check')) set_session('ss_adult_check', '');
 ?>
\ No newline at end of file
diff --git a/plugin/kcp/kcpcert_result.php b/plugin/kcp/kcpcert_result.php
index abc99cf14..3c66df1b4 100644
--- a/plugin/kcp/kcpcert_result.php
+++ b/plugin/kcp/kcpcert_result.php
@@ -2,9 +2,9 @@
 include_once('./kcpcert_config.php');
 
 set_session('ss_kcpcert_no',    '');
-set_session('ss_kcpcert_time',  '');
 set_session('ss_kcpcert_hash',  '');
-set_session('ss_adult_check',   '');
+set_session('ss_hp_certify',    '');
+set_session('ss_adult',         '');
 
 $site_cd       = "";
 $ordr_idxx     = "";
@@ -139,13 +139,13 @@ if( $cert_enc_use == "Y" )
         $md5_cert_no = md5($cert_no);
         $hash_data = md5($phone_no.$user_name.$md5_cert_no);
         set_session("ss_kcpcert_no",    $md5_cert_no);
-        set_session("ss_kcpcert_time",  G4_TIME_YMDHIS);
         set_session("ss_kcpcert_hash",  $hash_data);
+        set_session("ss_hp_certify",    "1");
 
         // 성인인증결과
         $adult_day = date("Ymd", strtotime("-19 years", G4_SERVER_TIME));
         if((int)$birth_day <= (int)$adult_day)
-            set_session("ss_adult_check", "Y");
+            set_session("ss_adult", "1");
     }
     else if( $res_cd != "0000" )
     {