Sony Bravia KDL-46EX645 HDTV Firmware 1.557

Sony has designed the BRAVIA Televisions software update process to be customer friendly. This software update (version v1.557) provides improved performance and stability of the Internet features.

Important Notes:

- WARNING: After performing this update, it is not possible to return to or install a previous version of the system software. By downloading and installing this update, you acknowledge that you understand this update cannot be reversed.
- WARNING: Please follow the upgrade instructions carefully. Failure to follow the instructions may interrupt the upgrade process and may cause the TV to be unresponsive or require repair.
- WARNING: Do not power off the TV or disconnect it from the AC power source during the upgrade process. Loss of power during the installation of the firmware upgrade may cause the TV to be unresponsive or require repair.
- All user settings are retained during the firmware update.
- It is normal for the TV set to restart during the update process. The TV set may take longer than usual to restart as it is installing the new firmware.
- To download the update, a USB storage device, such as a Sony Micro Vault device, or something similar, is required to perform the update. Sony is aware that not all USB storage devices are compatible with our TVs. If you are using a USB device for playback of photos, music, or videos on your TV, the same USB device type should work for the update. If the software update is not successful after following the instructions, you may need to format your device to the FAT32 file system, or use a different device.
- It is highly recommended that you print out these instructions for use as a reference during the installation process. 

About TV Firmware:

By upgrading your TV firmware version, you will benefit from improved image quality, fixed various noise issues, enhanced Internet connectivity (if available), boosted stability and usability level, as well as from several other changes.

However, you should first check that this release is compatible with your TV model and that it specifically resolves a problem that you have been encountering or makes changes that you deem useful.

In addition to that, since there are numerous TV models and manufacturers, as well as several methods for updating the software version, we recommend that you refer to the product guide, familiarize yourself with the procedure, and initiate the upgrade only when you have completely understood the steps.

Bear in mind that, in the event of an update failure encountered by trying to apply an improper firmware or if you don't successfully succeed to install the new software, the TV can suffer serious malfunctions.

Therefore, if you wish to apply this release, click the download button, get the package, and refer to the update guide to upgrade the TV firmware. Also, if you want to stay up to date with latest releases, check with our website as often as possible.