diff --git a/fir_client/src/components/FirDownload.vue b/fir_client/src/components/FirDownload.vue
index 2f0a6d8..7e35d03 100644
--- a/fir_client/src/components/FirDownload.vue
+++ b/fir_client/src/components/FirDownload.vue
@@ -223,7 +223,7 @@
 
         <div ref="signhelp" class="signhelp screenshots-section">
             <div class="signhelp-title">
-                超级签安装教程
+                iOS安装教程
                 <span><a id="closeBtn" @click="jiaocheng('close')">关闭</a></span>
             </div>
 
@@ -556,6 +556,8 @@
                         if (this.mcurrentappinfo.release_type === 2 && !this.currentappinfo.issupersign) {
                             this.signhelplist = this.inhousehelplist;
                         }
+                    } else if (data.code === 1002) {
+                        window.location.href = location.href.replace(location.search, '');
                     } else {
                         if (data.msg) {
                             document.title = data.msg;
diff --git a/fir_client/src/components/ShortDownload.vue b/fir_client/src/components/ShortDownload.vue
index 6502a14..a294241 100644
--- a/fir_client/src/components/ShortDownload.vue
+++ b/fir_client/src/components/ShortDownload.vue
@@ -4,7 +4,7 @@
 
         <div ref="signhelp" class="signhelp screenshots-section">
             <div class="signhelp-title">
-                超级签安装教程
+                iOS安装教程
                 <span><a id="closeBtn" @click="jiaocheng('close')">关闭</a></span>
             </div>
 
@@ -539,6 +539,8 @@
                         if (this.mcurrentappinfo.release_type === 2 && !this.currentappinfo.issupersign) {
                             this.signhelplist = this.inhousehelplist;
                         }
+                    } else if (data.code === 1002) {
+                        window.location.href = location.href.replace(location.search, '');
                     } else {
                         this.iserror = true;
                         if (data.code === 1009) {
diff --git a/fir_ser/api/migrations/0024_auto_20210324_1751.py b/fir_ser/api/migrations/0024_auto_20210324_1751.py
index fb397aa..f212467 100644
--- a/fir_ser/api/migrations/0024_auto_20210324_1751.py
+++ b/fir_ser/api/migrations/0024_auto_20210324_1751.py
@@ -4,7 +4,6 @@ from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ('api', '0023_auto_20210316_1602'),
     ]
diff --git a/fir_ser/api/utils/storage/caches.py b/fir_ser/api/utils/storage/caches.py
index 6bdd09e..4215ab7 100644
--- a/fir_ser/api/utils/storage/caches.py
+++ b/fir_ser/api/utils/storage/caches.py
@@ -314,7 +314,7 @@ def set_user_download_times_flag(user_id, act):
     return cache.set(user_can_download_key, act, 3600 * 24)
 
 
-def get_user_free_download_times(user_id, act='get'):
+def get_user_free_download_times(user_id, act='get', amount=1):
     now = timezone.now()
     user_free_download_times_key = "_".join(
         [CACHE_KEY_TEMPLATE.get("user_free_download_times_key"), str(now.year), str(now.month), str(now.day),
@@ -322,26 +322,26 @@ def get_user_free_download_times(user_id, act='get'):
     user_free_download_times = cache.get(user_free_download_times_key)
     if user_free_download_times is not None:
         if act == 'set':
-            return cache.incr(user_free_download_times_key, -1)
+            return cache.incr(user_free_download_times_key, -amount)
         else:
             return user_free_download_times
     else:
         cache.set(user_free_download_times_key, USER_FREE_DOWNLOAD_TIMES, 3600 * 24)
         if act == 'set':
-            return cache.incr(user_free_download_times_key, -1)
+            return cache.incr(user_free_download_times_key, -amount)
         else:
             return USER_FREE_DOWNLOAD_TIMES
 
 
-def consume_user_download_times(user_id, app_id):
+def consume_user_download_times(user_id, app_id, amount=1):
     with cache.lock("%s_%s" % ('consume_user_download_times', user_id)):
-        if get_user_free_download_times(user_id) > 0:
-            get_user_free_download_times(user_id, 'set')
+        if get_user_free_download_times(user_id, 'get', amount) > 0:
+            get_user_free_download_times(user_id, 'set', amount)
         else:
             if not check_user_can_download(user_id):
                 return False
             try:
-                UserInfo.objects.filter(pk=user_id).update(download_times=F('download_times') - 1)
+                UserInfo.objects.filter(pk=user_id).update(download_times=F('download_times') - amount)
             except Exception as e:
                 logger.error("%s download_times less then 0. Exception:%s" % (user_id, e))
                 disable_user_download_times_flag(user_id)
diff --git a/fir_ser/api/views/download.py b/fir_ser/api/views/download.py
index 9d2d4fa..ed44e21 100644
--- a/fir_ser/api/views/download.py
+++ b/fir_ser/api/views/download.py
@@ -239,12 +239,17 @@ class InstallView(APIView):
                     else:
                         ip = request.META['REMOTE_ADDR']
                     logger.info("remote ip %s short %s download_url %s app_obj %s" % (ip, short, download_url, app_obj))
-                if not consume_user_download_times(app_obj.get("user_id"), app_id):
-                    res.code = 1009
-                    res.msg = "可用下载额度不足"
-                    del res.data
-                    return Response(res.dict)
-                set_app_download_by_cache(app_id)
+                    set_app_download_by_cache(app_id)
+                    amount = 1
+                    # 超级签需要消耗2个下载次数
+                    if app_obj.get("issupersign"):
+                        amount += 1
+
+                    if not consume_user_download_times(app_obj.get("user_id"), app_id, amount):
+                        res.code = 1009
+                        res.msg = "可用下载额度不足"
+                        del res.data
+                        return Response(res.dict)
                 return Response(res.dict)
         else:
             res.code = 1004