is support for KDL-43WF665 completly dead?

[Xcile92]

i have massive issues with this TV. mainly due to poor firmware. tv crashes during bootup when switching on. also poor latency with the remote controller. youtube appcrashes so frequently or video playback becomes unstable with intermittent buffering. also when using auto resolution in youtube it cannot reach 1080p. also bugs in lan when i get rare disconnections. also wifi refuses to find a 5g connection. also mobile screen mirroring is completely broken when using miracast. and amazon is completly unusable to freezing up constantly on bootup.  netflix has some latecny issues. also the bug is still unfixed when trying to receive firmware updates automatically on the tv when connected to lan or wifi. and this new ver8.609 needs replacing with a new update. this tv sucks massively when sony refuses to fix their stuff. also tv sync issues between xbox one and the tv when sometimes the tv refuses to synchronize with the xbox software through hdmi when switching on the xbox or restarting the system. also reinitializing the tv does not fix anything as these issues persistant and always recurring.

[Xcile92]

if a 3rd party knows how to make a community firmware to fix this since sony is so lazy. that may help please.

[HannahEd01]

Hey there, there was a software update released last year (July): https://www.sony.co.uk/electronics/support/lcd-tvs-wf66x_w66xf-series/kdl-43wf665/software/00257917?...