[Nexus 6 Android Development] nitin.chobhe:
It shows the date - tap on Android version - 9 once and take the screenshot.

Substratum can be a reason for the reboot. I see this in the log:

09-30 10:59:34.545 19005 19005 E AndroidRuntime: FATAL EXCEPTION: main
09-30 10:59:34.545 19005 19005 E AndroidRuntime: Process: com.android.systemui, PID: 19005
09-30 10:59:34.545 19005 19005 E AndroidRuntime: DeadSystemException: The system died; earlier logs will point to the root cause
09-30 18:45:39.220 21309 21309 E AndroidRuntime: FATAL EXCEPTION: main
09-30 18:45:39.220 21309 21309 E AndroidRuntime: PID: 21309
09-30 18:45:39.220 21309 21309 E AndroidRuntime: java.lang.SecurityException: Injecting to another application requires INJECT_EVENTS permission
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.os.Parcel.createException(Parcel.java:1942)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.os.Parcel.readException(Parcel.java:1910)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.os.Parcel.readException(Parcel.java:1860)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.hardware.input.IInputManager$Stub$Proxy.injectInputEvent(IInputManager.java:575)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.hardware.input.InputManager.injectInputEvent(InputManager.java:880)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.commands.input.Input.injectKeyEvent(Input.java:272)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.commands.input.Input.sendKeyEvent(Input.java:198)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.commands.input.Input.run(Input.java:97)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.commands.input.Input.main(Input.java:60)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:342)
09-30 18:45:39.220 21309 21309 E AndroidRuntime: Caused by: android.os.RemoteException: Remote stack trace:
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.server.input.InputManagerService.injectInputEventInternal(InputManagerService.java:621)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at com.android.server.input.InputManagerService.injectInputEvent(InputManagerService.java:595)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.hardware.input.IInputManager$Stub.onTransact(IInputManager.java:143)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:	at android.os.Binder.execTransact(Binder.java:731)
09-30 18:45:39.220 21309 21309 E AndroidRuntime:
09-30 18:45:39.221 21309 21309 E AndroidRuntime: Error reporting crash
09-30 18:45:39.221 21309 21309 E AndroidRuntime: java.lang.RuntimeException: Bad file descriptor
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.os.BinderProxy.transactNative(Native Method)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.os.BinderProxy.transact(Binder.java:1127)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.os.ServiceManagerProxy.getService(ServiceManagerNative.java:125)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.os.ServiceManager.rawGetService(ServiceManager.java:253)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.os.ServiceManager.getService(ServiceManager.java:124)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.app.ActivityManager$1.create(ActivityManager.java:4133)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.app.ActivityManager$1.create(ActivityManager.java:4130)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.util.Singleton.get(Singleton.java:34)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at android.app.ActivityManager.getService(ActivityManager.java:4126)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at com.android.internal.os.RuntimeInit$KillApplicationHandler.uncaughtException(RuntimeInit.java:143)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1068)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:1063)
09-30 18:45:39.221 21309 21309 E AndroidRuntime:	at java.lang.Thread.dispatchUncaughtException(Thread.java:1955)

Nitin