diff --git a/app/src/main/java/com/topjohnwu/magisk/events/dialog/EnvFixDialog.kt b/app/src/main/java/com/topjohnwu/magisk/events/dialog/EnvFixDialog.kt
index 56294594e..9784ebfa0 100644
--- a/app/src/main/java/com/topjohnwu/magisk/events/dialog/EnvFixDialog.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/events/dialog/EnvFixDialog.kt
@@ -10,7 +10,7 @@ import com.topjohnwu.magisk.ui.home.HomeViewModel
 import com.topjohnwu.magisk.view.MagiskDialog
 import kotlinx.coroutines.launch
 
-class EnvFixDialog(private val vm: HomeViewModel) : DialogEvent() {
+class EnvFixDialog(private val vm: HomeViewModel, private val code: Int) : DialogEvent() {
 
     override fun build(dialog: MagiskDialog) {
         dialog.apply {
@@ -38,8 +38,10 @@ class EnvFixDialog(private val vm: HomeViewModel) : DialogEvent() {
             }
         }
 
-        if (Info.env.versionCode != BuildConfig.VERSION_CODE ||
+        if (code == 2 || // No rules block, module policy not loaded
+            Info.env.versionCode != BuildConfig.VERSION_CODE ||
             Info.env.versionString != BuildConfig.VERSION_NAME) {
+            dialog.setMessage(R.string.env_full_fix_msg)
             dialog.setButton(MagiskDialog.ButtonType.POSITIVE) {
                 text = android.R.string.ok
                 onClick {
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt b/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
index b107a9ffb..f08474bd3 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/home/HomeViewModel.kt
@@ -135,8 +135,9 @@ class HomeViewModel(
     private suspend fun ensureEnv() {
         if (magiskState == State.INVALID || checkedEnv) return
         val cmd = "env_check ${Info.env.versionString} ${Info.env.versionCode}"
-        if (!Shell.cmd(cmd).await().isSuccess) {
-            EnvFixDialog(this).publish()
+        val code = Shell.cmd(cmd).await().code
+        if (code != 0) {
+            EnvFixDialog(this, code).publish()
         }
         checkedEnv = true
     }
diff --git a/app/src/main/res/raw/manager.sh b/app/src/main/res/raw/manager.sh
index 1dea66f3b..756302dae 100644
--- a/app/src/main/res/raw/manager.sh
+++ b/app/src/main/res/raw/manager.sh
@@ -13,8 +13,11 @@ env_check() {
   if [ "$2" -ge 25000 ]; then
     [ -f "$MAGISKBIN/magiskpolicy" ] || return 1
   fi
-  grep -xqF "MAGISK_VER='$1'" "$MAGISKBIN/util_functions.sh" || return 1
-  grep -xqF "MAGISK_VER_CODE=$2" "$MAGISKBIN/util_functions.sh" || return 1
+  if [ "$2" -ge 25210 ]; then
+    [ -b "$MAGISKTMP/block/rules" ] || return 2
+  fi
+  grep -xqF "MAGISK_VER='$1'" "$MAGISKBIN/util_functions.sh" || return 3
+  grep -xqF "MAGISK_VER_CODE=$2" "$MAGISKBIN/util_functions.sh" || return 3
   return 0
 }
 
@@ -41,7 +44,7 @@ fix_env() {
   rm -rf $MAGISKBIN/*
   mkdir -p $MAGISKBIN 2>/dev/null
   chmod 700 $NVBASE
-  rm $1/stub.apk
+  rm $1/stub.apk 2>/dev/null
   cp_readlink $1 $MAGISKBIN
   rm -rf $1
   chown -R 0:0 $MAGISKBIN
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 26d912099..33e39e969 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -219,6 +219,7 @@
     <string name="setup_fail">Setup failed</string>
     <string name="env_fix_title">Requires Additional Setup</string>
     <string name="env_fix_msg">Your device needs additional setup for Magisk to work properly. Do you want to proceed and reboot?</string>
+    <string name="env_full_fix_msg">Your device needs reflash Magisk to work properly. Please reinstall Magisk within app, recovery mode cannot get correct device info.</string>
     <string name="setup_msg">Running environment setup…</string>
     <string name="authenticate">Authenticate</string>
     <string name="unsupport_magisk_title">Unsupported Magisk Version</string>