diff --git a/webapp/controller/BlockChainController.class.php b/webapp/controller/BlockChainController.class.php
index de4f6ea6..cc2998c9 100644
--- a/webapp/controller/BlockChainController.class.php
+++ b/webapp/controller/BlockChainController.class.php
@@ -124,40 +124,36 @@ class BlockChainController extends BaseAuthedController {
                 myself()->_rspErr(1, 'hero not found');
                 return;
             }
+            $isMint = true;
             if ($heroDb['token_id'] && $heroDb['activate']) {
-                myself()->_rspErr(1, 'already activated');
-                return;
-            }
-            /*
-            if ($heroDb['state'] == 1) {
-                myself()->_rspErr(1, 'cant mint');
-                return;
-                }*/
-            $tokenId = $heroDb['token_id'];
-            if (!$tokenId) {
-                $tokenId = BuyRecord::genOrderId
-                         (
-                             GAME_ID,
-                             phpcommon\BC_FUNC_CREATION,
-                             myself()->_getNowTime(),
-                             myself()->_getAddress()
-                         );
-                Hero::safeUpdateTokenId($heroDb['hero_uniid'], $tokenId);
-                $heroDb = Hero::find($uniid);
-                if (!$heroDb) {
-                    myself()->_rspErr(1, 'hero not found');
-                    return;
-                }
-                if ($heroDb['token_id'] != $tokenId) {
-                    myself()->_rspErr(500, 'server internal error');
-                    return;
+                $isMint = false;
+            } else {
+                $tokenId = $heroDb['token_id'];
+                if (!$tokenId) {
+                    $tokenId = BuyRecord::genOrderId
+                             (
+                                 GAME_ID,
+                                 phpcommon\BC_FUNC_CREATION,
+                                 myself()->_getNowTime(),
+                                 myself()->_getAddress()
+                             );
+                    Hero::safeUpdateTokenId($heroDb['hero_uniid'], $tokenId);
+                    $heroDb = Hero::find($uniid);
+                    if (!$heroDb) {
+                        myself()->_rspErr(1, 'hero not found');
+                        return;
+                    }
+                    if ($heroDb['token_id'] != $tokenId) {
+                        myself()->_rspErr(500, 'server internal error');
+                        return;
+                    }
                 }
             }
             $this->internalActivate721Nft($tokenId,
                                           Nft::HERO_TYPE,
                                           $heroDb['hero_uniid'],
                                           $heroDb['hero_id'],
-                                          true);
+                                          $isMint);
         }
         break;
         default:
@@ -204,7 +200,7 @@ class BlockChainController extends BaseAuthedController {
             'token_type' => $tokenType,
             'item_uniid' => $itemUniId,
             'item_id' => $itemId,
-            'is_mint' => $isMint,
+            'is_mint' => $isMint ? 1 : 0,
             'net_id' => NET_ID
         );
         {