This cam used to work fine but now will not record motion events or send notifications to my iPhone app.   At all. Tried power cycling, tried hard reset and reinstalling the cam.  No joy.  It streams fine and I can view it anytime on the iPhone app.  Just has zero motion detect ability regardless of settings.  This is in an elder care scenario and I need the motion detect notification to work.  I don't see any alternative firmwares or a way to downgrade back?  Can that be done?  How?  And where can I get the previous FW?  Or do I just need to go buy a different brand cam??