and your panel resolution is exactly . Installing the wrong resolution or board version can result in a "black screen" or permanent bricking of the device.

: Since you are looking for "part4," you must download all parts (Part 1, 2, 3, and 4) into the same folder before extracting. You cannot use Part 4 alone; extraction must usually be started from Part 1 to reconstruct the full ctvupdate.bin file.

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.

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.

The is an Android-based universal smart LED TV mainboard often found in various brands of budget smart TVs. The specific file you are looking for— CV628H B42 1366x768 Sony Normal (Seedha) part4.rar —belongs to a multi-part firmware archive designed for a 1366x768 resolution panel with a Sony-style remote configuration and a "Seedha" (Normal/Straight) picture orientation. Important Download Considerations