Smart TVs that run on Android OS require software updates to keep running smoothly. As we all know an update fixes up bugs, errors on a particular build. So, you must update firmware on your Sony smart TV. In this guide, I have explained in detail the process of new firmware installation.
I have also linked up the latest firmware which is available for the update. There is a list of all supported models on which the upgrade process can be carried out. The latest available firmware comes with build number v6.4770. Installing it will improve the collective performance of the smart TV. If some TV models have been unable to install Disney+ app, then that bug has been fixed as well with the current update.

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How to Update Firmware
First, you need to know which models of Sony Smart TV support this upgrade process and the firmware included. Here is the list of the supported devices.
Models of Sony Smart TV that Support the Upgrade
- XBR-85X950H
- XBR-49X950H
- XBR-85X800H
- XBR-65X805H
- XBR-55X805H
- XBR-75X800H
- XBR-65X800H
- XBR-75X805H
- XBR-85Z8H
- XBR-75Z8H
- XBR-75X950H
- XBR-55X800H
- XBR-49X800H
- XBR-43X800H
- XBR-65A8H
- XBR-55A8H
- XBR-65X950H
- XBR-55X950H
Now, depending upon whether you use a smart TV model of Sony from the list put up above, download the latest firmware. It weighs above 1 GB in size. So, use WiFi to download it swiftly.
Download
Pre-Requisites
First, there are a few guidelines you must follow to successfully finish the update process.
- A PC with internet access
- A USB device
- Latest Firmware [link above]
- First, check whether already your smart TV is running on the latest firmware. Then there is no need to separately re-install it once again.
- Use your TV remote to press the Help Button. You will get to see the model of the TV and the software version. If it matches with the latest firmware version, then no need to re-update.
- Do not switch off your TV while the upgrade process is going on.
Disclaimer
How to Automatically Check for Update
If you do not want to follow the manual way of the firmware update, then you can wait for the smart TV to download and install updates on its own.
- On your remote control press the HELP button
- Then select System software update > Automatically check for update.