FDR-AX53 - I don't understand why you can't activate NightShot while connected to PlayMemories Mobile. If I'm not mistaken, all this does is displace the IR cut filter. So, why can't you use it with PMM? If NightShot is already on, it turns it off. The NightShot button no longer works as well. To me this seems like a glitch or oversight. Why would Sony purposely limit users from using NightShot in PMM? It doesn't make sense...
1) Update camera firmware that prevents camera from deactivating NightShot when entering PMM.
2) More preferably, add a NightShot button within PMM to activate it remotely when desired.