According to KenotronTV (a resource for service center firmware), the tested, verified USB firmware for the KDL-43W800C (Android V8.0) is the Sony_tvupdate_2015_6827_paa_auth package. Why Update?
Corrects audio-video sync latency and optimizes port communication (HDMI, ARC, USB). Technical Specifications of the Verified Firmware firmware sony 43w800c verified
. Third-party sites claiming "verified" firmware may host corrupted or malicious files. Power Stability According to KenotronTV (a resource for service center