When the TalkBack feature is enabled, the TV cannot control devices connected via HDMI (CEC).
IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article. To check what type of TV you have, refer to the How to check if your BRAVIA TV is a Google TV™, Android TV™, or other TV article.
The TV does not support Key passing of CEC when the TalkBack feature is enabled. If you want to control a device connected via HDMI, disable the TalkBack feature, or use the Screen Reader feature instead of TalkBack.