I checked the current firmware on the TV and it is out of date. I want to be able to turn of the often very loud startup chime, which the later firmware allows. So I decided to update.

I followed the instructions for update this TV and downloading the update, checked the file size, extracted and then copied the folder to the root of a FAT32 formatted stick. Inserting the USB, the TV shows that it has been detected, but that's as far as it gets. I tried various sticks and tried using a Windows machine to format and copy, but still the same problem.

In desparation I picked up the TV (no I didn't throw it out the window, but it was close) and moved it into a room with a ethernet connection. Plugged in and configured the network. Checked that auto update was on, but again nothing.

Sony support have not responded, so I am hoping the good people of this community will save the day.