Important Notice Important Notices: 1. Please double check again for model name of your TV (Main menu->GetHelp->Support Information), takes wrong image may make your TV inoperable. Your TV setting will be lost during update procedure. Please check your current firmware version before update. Updating the same version or downgraded is not allowed. Preparation: 1. A USB stick with 256MB at least.

This is the Toshiba TV website. On it you can find information about new TVs as well as support information.

Formatted with FAT32 format. Firmware: Please get from the download link.

Unzip the download file without password. Be note, the file name should not be changed or your firmware update will not work. 43/49/55/65L621U: UPDATE_CASTTV_UHD_01.04.088_FY17_sc_INIT_CLEAR.prg 4.

Copy the firmware file “UPDATE_CASTTV_UHD_01.04.088_FY17_sc_INIT_CLEAR.prg” to root directory of your USB stick Start update: Please download detail procedure in following link Firmware Release Notices: 1. Other bug fixes and performance improvement.