[Xiaomi Redmi Note 3 Guides, News, & Discussion] Tfgru:
Well, my Mi4c passed the Manual Camera Compatibility Test, but camera doesn't work. There is Camera error on stock camera, Camera FV-5 and Snap Camera. I can't run Manual Camera because it crashes too with "Unfortunately, Manual Camera has stopped" error.

java.lang.RuntimeException: CameraAccessException while trying to lock camera opening.
at pl.vipek.camera2.controller.p.b(Unknown Source)
at pl.vipek.camera2.controller.p.a(Unknown Source)
at pl.vipek.camera2.controller.ad.onSurfaceTextureAvailable(Unknown Source)
at android.view.TextureView.getHardwareLayer(TextureView.java)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.View.draw(View.java)
at android.view.ViewGroup.drawChild(ViewGroup.java)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.View.draw(View.java)
at android.view.ViewGroup.drawChild(ViewGroup.java)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java)
at android.view.View.draw(View.java)
at android.widget.FrameLayout.draw(FrameLayout.java)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.View.draw(View.java)
at android.view.ViewGroup.drawChild(ViewGroup.java)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.View.draw(View.java)
at android.view.ViewGroup.drawChild(ViewGroup.java)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.View.draw(View.java)
at android.view.ViewGroup.drawChild(ViewGroup.java)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java)
at android.view.View.draw(View.java)
at android.widget.FrameLayout.draw(FrameLayout.java)
at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2653)
at android.view.View.updateDisplayListIfDirty(View.java)
at android.view.View.getDisplayList(View.java)
at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java)
at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java)
at android.view.ThreadedRenderer.draw(ThreadedRenderer.java)
at android.view.ViewRootImpl.draw(ViewRootImpl.java)
at android.view.ViewRootImpl.performDraw(ViewRootImpl.java)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java)
at android.view.Choreographer.doCallbacks(Choreographer.java)
at android.view.Choreographer.doFrame(Choreographer.java)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java)
at android.os.Handler.handleCallback(Handler.java)
at android.os.Handler.dispatchMessage(Handler.java)
at android.os.Looper.loop(Looper.java)
at android.app.ActivityThread.main(ActivityThread.java)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:163)
Caused by: android.hardware.camera2.CameraAccessException: The camera device is removable and has been disconnected from the Android device, or the camera service has shut down the connection due to a higher-priority access request for the camera device.
at android.hardware.camera2.utils.CameraBinderDecorator.throwOnError(CameraBinderDecorator.java)
at android.hardware.camera2.utils.CameraBinderDecorator$CameraBinderDecoratorListener.onAfterInvocation(CameraBinderDecorator.java)
at android.hardware.camera2.utils.Decorator.invoke(Decorator.java)
at java.lang.reflect.Proxy.invoke(Proxy.java:397)
at $Proxy0.connectDevice(Unknown Source)
at android.hardware.camera2.CameraManager.openCameraDeviceUserAsync(CameraManager.java)
at android.hardware.camera2.CameraManager.openCamera(CameraManager.java)
... 57 more

Let me know if someone want full logs.