[ONE Q&A, Help & Troubleshooting] giaur:
There is nothing you can do to fix that. It fails with NullPointerException (wtf?):

12-13 12:13:41.469 289 19172 E mm-camera: q3a_port_send_event_downstream: AEC event handler returned failure!
12-13 12:13:41.471 19035 19035 E AndroidRuntime: FATAL EXCEPTION: main
12-13 12:13:41.471 19035 19035 E AndroidRuntime: Process: com.google.android.GoogleCamera, PID: 19035
12-13 12:13:41.471 19035 19035 E AndroidRuntime: java.lang.RuntimeException: java.lang.NullPointerException
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.error.UncaughtExceptionHandler$1.run(UncaughtExceptionHandler.java:29)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Handler.handleCallback(Handler.java:751)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Handler.dispatchMessage(Handler.java:95)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Looper.loop(Looper.java:154)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.app.ActivityThread.main(ActivityThread.java:6126)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at java.lang.reflect.Method.invoke(Native Method)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
12-13 12:13:41.471 19035 19035 E AndroidRuntime: Caused by: java.lang.NullPointerException
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.google.common.base.ExtraObjectsMethodsForWeb.checkNotNull(ExtraObjectsMethodsForWeb.java:4770)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.one.v2.autofocus.AfStateResponseListenerImpl.onCompleted(AfStateResponseListenerImpl.java:35)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.one.v2.core.ResponseListenerBroadcaster.onCompleted(ResponseListenerBroadcaster.java:50)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.one.v2.core.BasicFrameRequestProcessor$CaptureCallback.onCaptureCompleted(BasicFrameRequestProcessor.java:74)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.one.v2.stats.ProfilingCameraCaptureSession$ProfilingCaptureCallback.onCaptureCompleted(ProfilingCameraCaptureSession.java:49)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at com.android.camera.one.v2.camera2proxy.AndroidCameraCaptureSessionProxy$AndroidCaptureCallback.onCaptureCompleted(AndroidCameraCaptureSessionProxy.java:61)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at java.lang.reflect.Method.invoke(Native Method)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.hardware.camera2.dispatch.InvokeDispatcher.dispatch(InvokeDispatcher.java:39)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.hardware.camera2.dispatch.HandlerDispatcher$1.run(HandlerDispatcher.java:65)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Handler.handleCallback(Handler.java:751)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Handler.dispatchMessage(Handler.java:95)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.Looper.loop(Looper.java:154)
12-13 12:13:41.471 19035 19035 E AndroidRuntime:	at android.os.HandlerThread.run(HandlerThread.java:61)
12-13 12:13:41.471 279 19078 D QCameraParameters: update current cct value. old:-1, now:0

Use 4.1 instead (but movie recording won't work).