If you encounter issues during or after a firmware update, try these troubleshooting steps:
, "verified" firmware carries three distinct layers of meaning: Firmware Update Changes - XBR 800/900C Series
Improved system performance, security patches, and resolved issues where YouTube or Netflix might fail to load. Verified Update Methods 1. Automatic Update (Recommended) On the remote, press the HELP button. Select System software update . Select Check for a system software update .
: While specific "v6.xxx" versions are common for this chassis, Sony recently released a broad security and stability update, v112.634.100.2 , in March 2026 for many older Android TV models.
Depending on your region, the "verified" latest version may differ. Here are the most recent stable releases identified for this model:
By following this comprehensive guide, you'll be able to verify and update your Sony 43W800C firmware with confidence, ensuring an optimal viewing experience.