The TV should automatically detect the file and prompt you to begin. If it doesn't, navigate to Settings > Support > Software Update > Update via USB using your remote.
After the update, Sony recommends performing an auto-tune to refresh your channel list. Key Fixes in Version M5.167 Fixes "pink" or excess color tinting when first powered on. Download SONY KDL 32S5600 Software rar
Resolves issues where remote control or front panel buttons stop responding. The TV should automatically detect the file and
Because Sony officially terminated software downloads for this model in January 2022, you must use reliable third-party archives. The latest firmware version is M5.167 . Download SONY KDL 32S5600 Software rar