diff --git a/download/download3.html b/download/download3.html
index 27918ca..74e2306 100644
--- a/download/download3.html
+++ b/download/download3.html
@@ -104,7 +104,7 @@ $(function(){
             window.location.href = 'https://app.footseen.com/download.html';
         } else if (/android/.test(ua)) {
             if(sessionStorage.apk!=undefined)window.location.href=sessionStorage.apk
-           window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
+            else window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
         }else{
             window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
         }
diff --git a/mobile/download/download.html b/mobile/download/download.html
index 534b472..f5f4851 100644
--- a/mobile/download/download.html
+++ b/mobile/download/download.html
@@ -63,7 +63,8 @@ $(function(){
         if (/iphone|ipad|ipod/.test(ua)) {
             window.location.href = 'https://app.footseen.com/download.html';
         } else if (/android/.test(ua)) {
-           window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SY.apk"
+            if(sessionStorage.apk!=undefined)window.location.href=sessionStorage.apk
+            else window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SY.apk"
         }else{
             window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SY.apk"
         }
diff --git a/mobile/download/download2.html b/mobile/download/download2.html
index 9645b72..4a7e658 100644
--- a/mobile/download/download2.html
+++ b/mobile/download/download2.html
@@ -63,7 +63,8 @@ $(function(){
         if (/iphone|ipad|ipod/.test(ua)) {
             window.location.href = 'https://app.footseen.com/download.html';
         } else if (/android/.test(ua)) {
-           window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SP.apk"
+            if(sessionStorage.apk!=undefined)window.location.href=sessionStorage.apk
+            else window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SP.apk"
         }else{
             window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5SP.apk"
         }
diff --git a/mobile/download/download3.html b/mobile/download/download3.html
index fe15fb5..6583c7c 100644
--- a/mobile/download/download3.html
+++ b/mobile/download/download3.html
@@ -63,7 +63,8 @@ $(function(){
         if (/iphone|ipad|ipod/.test(ua)) {
             window.location.href = 'https://app.footseen.com/download.html';
         } else if (/android/.test(ua)) {
-           window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
+            if(sessionStorage.apk!=undefined)window.location.href=sessionStorage.apk
+            else window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
         }else{
             window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5TW.apk"
         }
diff --git a/mobile/download/download4.html b/mobile/download/download4.html
index dcddab0..8dcda48 100644
--- a/mobile/download/download4.html
+++ b/mobile/download/download4.html
@@ -63,7 +63,8 @@ $(function(){
         if (/iphone|ipad|ipod/.test(ua)) {
             window.location.href = 'https://app.footseen.com/download.html';
         } else if (/android/.test(ua)) {
-           window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5ZB.apk"
+            if(sessionStorage.apk!=undefined)window.location.href=sessionStorage.apk
+            else window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5ZB.apk"
         }else{
             window.location.href="https://bgps2.yazhai.co/footseexyz/apk/ftsBH5ZB.apk"
         }