With the TV off, insert the USB and then power on the TV. The update process should start automatically, usually indicated by a blinking LED.
: The "Sony Normal" tag indicates this firmware will likely display a Sony logo on startup and respond to Sony-compatible remote codes. Typical Update Procedure Download all parts of the RAR archive. Download CV628H B42 1366x768 Sony Normal (Seedha) part4 rar
Extract Part 1 (which will automatically pull data from Part 4) to get the ctvupdate.bin file. Format a USB drive (8GB or less is recommended) to . Copy the ctvupdate.bin to the root of the USB drive. With the TV off, insert the USB and then power on the TV
Do you have the of this firmware archive? With the TV off