In an email to Sony Alpha Rumors, a user complains that the firmware 3.0 for the Sony FX30 kills third-party battery support.
Hi Andreas hope your well, just a bit of info I think you might find interesting; I just updated my fx30 to version 3.00 to try out the new sony monitor and control app. And the camera now rejects 3rd party batteries, well you can still use them but you get a warning pop up then it removes the battery percentage if you choose continue to use. There’s no mention of this at all on sonys update documentation, but could cause a lot of issues/ confusion with people. Hopefully you can pass the message on, Cheers!Sony Alpha Rumors
The video below by Axel Wolstenholme takes us through the process of updating the FX30 only to find out that some third-party batteries aren't supported. Are all batteries no longer supported?