Firmware update on older Sony Bravia

[Jetfour]

Can anyone tell me how to update the firmware on an older Sony TV -  KDL40W-4000.

Can this model receive updates via USB stick?  If so, where can I find such a download?
The Sony websites are not helping me in the search for information.

[LightFoot]

Hi @Jetfour 

It looks like your TV has reached end of life as far as support is concerned. There are no firmware updates available. 

https://www.sony.co.uk/electronics/support/televisions-projectors-lcd-tvs/kdl-40w4000/downloads