HT-G700 Firmware 1.100 update broken Simplink-CEC

[Diony5u5]

Hi,

Since updating the firmware on the G700 it has broken the HDMI-CEC connection to my LG OLED TV.

Before the update I could use the TV remote to control the volume and also synchronised power on/off.

I have been through all the settings (HDMI) and tried another Restart but nothing helps.

I there a way to get back to an earlier Firmware release?

Firmware Update to Version 1.100 or 2.111 | Sony UK