@memory Android日志会有 I/WindowManager( 2046): SAFE MODE ENABLED (menu=0 s=0 dpad=-1 trackball=-1)报错，然后根据括号内容的值提示，就能找到原因。

强硬去除安全模式的修改，可做参考

diff --git a/services/core/java/com/android/server/power/ShutdownThread.java b/services/core/java/com/android/server/power/ShutdownThread.java
index bdb5d3f0..c11d555c 100644
--- a/services/core/java/com/android/server/power/ShutdownThread.java
+++ b/services/core/java/com/android/server/power/ShutdownThread.java
@@ -255,7 +255,7 @@ public final class ShutdownThread extends Thread {
         }

         mReboot = true;
-        mRebootSafeMode = true;
+        mRebootSafeMode = false;
         mRebootHasProgressBar = false;
         mReason = null;
         shutdownInner(context, confirm);
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index d8bb8d86..8193de92 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -4500,7 +4500,7 @@ public class WindowManagerService extends IWindowManager.Stub
             Log.i(TAG_WM, "SAFE MODE not enabled");
         }
         mPolicy.setSafeMode(mSafeMode);
-        return mSafeMode;
+        return false;
     }

     public void displayReady() {