I have had my A1 for a while now but after the latest major update (2.02) I notice that it now makes a low humming sound, like a cooling fan noise, which is quite noticeable in a quiet hide. I do not believe there is active cooling on the camera. Also, the battery now drains really quickly, likely as a result of whatever this is. I see that this issue is being reported by others too, but can't see any posts here. Sony and fellow photographers, what is this and how do I stop it?
