diff --git a/README.md b/README.md
index cc1fc14..ead252f 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 使用xposed让被完全停止的应用响应fcm，让fcm送达率达到100%，不错过任何通知  
 
 - 允许fcm唤醒选中的应用来发送通知
+- 解除miui12对后台应用的通知限制(非miui系统没影响)
 - 修复在国内网络下出现重连服务出现负数问题(貌似是miui优化的问题)(可选)(需要查看自己手机上gms的版本编辑配置文件)
 - 固定心跳间隔为117s(可选)(需要查看自己手机上gms的版本编辑配置文件)
 
@@ -34,6 +35,8 @@
 </map>
 
 ```
+注: heartbeatInterval 设置为0的话则不固定心跳间隔时间，使用原本的自适应
+
 - 9. 最后将配置文件的enable修改true，保存，重启手机
 
 - 10. 一般来说gms更新改变的只有类名也就是timer_class
diff --git a/app/build.gradle b/app/build.gradle
index 1c97bd4..a349d82 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.kooritea.fcmfix"
         minSdkVersion 29
         targetSdkVersion 30
-        versionCode 6
-        versionName "0.0.5"
+        versionCode 7
+        versionName "0.1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
diff --git a/app/src/main/java/com/kooritea/fcmfix/XposedMain.java b/app/src/main/java/com/kooritea/fcmfix/XposedMain.java
index 7e15205..ca5a79e 100644
--- a/app/src/main/java/com/kooritea/fcmfix/XposedMain.java
+++ b/app/src/main/java/com/kooritea/fcmfix/XposedMain.java
@@ -1,17 +1,8 @@
 package com.kooritea.fcmfix;
 
-import android.app.AndroidAppHelper;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-
 import com.kooritea.fcmfix.xposed.BroadcastFix;
+import com.kooritea.fcmfix.xposed.MiuiLocalNotificationFix;
 import com.kooritea.fcmfix.xposed.ReconnectManagerFix;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileReader;
-
 import de.robv.android.xposed.IXposedHookLoadPackage;
 import de.robv.android.xposed.XposedBridge;
 import de.robv.android.xposed.callbacks.XC_LoadPackage;
@@ -22,11 +13,13 @@ public void handleLoadPackage(final XC_LoadPackage.LoadPackageParam loadPackageP
         if(loadPackageParam.packageName.equals("android")){
             XposedBridge.log("[fcmfix] start hook com.android.server.am.ActivityManagerService");
             new BroadcastFix(loadPackageParam);
+
+            XposedBridge.log("[fcmfix] start hook com.android.server.notification.NotificationManagerServiceInjector");
+            new MiuiLocalNotificationFix(loadPackageParam);
         }
         if(loadPackageParam.packageName.equals("com.google.android.gms")){
             XposedBridge.log("[fcmfix] start hook com.google.android.gms");
             new ReconnectManagerFix(loadPackageParam);
-
         }
 
     }
diff --git a/app/src/main/java/com/kooritea/fcmfix/xposed/MiuiLocalNotificationFix.java b/app/src/main/java/com/kooritea/fcmfix/xposed/MiuiLocalNotificationFix.java
new file mode 100644
index 0000000..87fc8e6
--- /dev/null
+++ b/app/src/main/java/com/kooritea/fcmfix/xposed/MiuiLocalNotificationFix.java
@@ -0,0 +1,44 @@
+package com.kooritea.fcmfix.xposed;
+
+import android.app.AndroidAppHelper;
+import android.content.Intent;
+import android.os.Build;
+
+import com.kooritea.fcmfix.util.ContentProviderHelper;
+
+import java.lang.reflect.Method;
+
+import de.robv.android.xposed.XC_MethodHook;
+import de.robv.android.xposed.XposedBridge;
+import de.robv.android.xposed.XposedHelpers;
+import de.robv.android.xposed.callbacks.XC_LoadPackage;
+
+public class MiuiLocalNotificationFix extends XposedModule  {
+    public MiuiLocalNotificationFix(XC_LoadPackage.LoadPackageParam loadPackageParam) {
+        super(loadPackageParam);
+        this.startHook();
+    }
+
+    protected void startHook(){
+        Class<?> clazz = XposedHelpers.findClass("com.android.server.notification.NotificationManagerServiceInjector",loadPackageParam.classLoader);
+        final Method[] declareMethods = clazz.getDeclaredMethods();
+        Method targetMethod = null;
+        for(Method method : declareMethods){
+            if(method.getName().equals("isAllowLocalNotification")){
+                targetMethod = method;
+                break;
+            }
+        }
+        if(targetMethod != null){
+            XposedBridge.hookMethod(targetMethod,new XC_MethodHook() {
+                @Override
+                protected void afterHookedMethod(MethodHookParam methodHookParam) throws Throwable {
+                    methodHookParam.setResult(true);
+                    printLog("Allow LocalNotification " + methodHookParam.args[3]);
+                }
+            });
+        }else{
+            printLog("Not found isAllowLocalNotification in com.android.server.notification.NotificationManagerServiceInjector");
+        }
+    }
+}
diff --git a/app/src/main/java/com/kooritea/fcmfix/xposed/ReconnectManagerFix.java b/app/src/main/java/com/kooritea/fcmfix/xposed/ReconnectManagerFix.java
index 635a3c9..5c2358f 100644
--- a/app/src/main/java/com/kooritea/fcmfix/xposed/ReconnectManagerFix.java
+++ b/app/src/main/java/com/kooritea/fcmfix/xposed/ReconnectManagerFix.java
@@ -140,7 +140,10 @@ protected void beforeHookedMethod(final MethodHookParam param) throws Throwable
                 // 修改心跳间隔
                 Intent intent = (Intent) XposedHelpers.getObjectField(param.thisObject, sharedPreferences.getString("timer_intent_property", ""));
                 if ("com.google.android.gms.gcm.HEARTBEAT_ALARM".equals(intent.getAction())) {
-                    param.args[0] = sharedPreferences.getLong("heartbeatInterval", 117000L);
+                    long interval = sharedPreferences.getLong("heartbeatInterval", 0L);
+                    if(interval != 0L){
+                        param.args[0] = interval;
+                    }
                 }
             }