Sony Bravia KDL-55W900A HDTV Firmware 4.600

This software update (version PKG4.600AAA) provides the following benefits:

- Provides a security update
- Improves general performance of the TV

How to Check if You Need the Update:

- Power on the TV.
- On the TV remote control, press the HOME button to open the TV Home Menu.
- On the remote control, use the arrows Arrows to select Settings.
- Use the arrows to highlight the Product Support Product Support Icon icon, and then press the Enter Enter Button button on the remote control.
- Use the arrows to select the Contact Sony Contact Sony Icon icon, and then press the Enter Enter Button button on the remote control.
- Check the Software Version displayed on the Contact Sony screen. If your software version is the same with the one you are about to download or higher, your TV does not need this update.

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 type of USB device 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.

Updating the Software:

- The software update takes up to five minutes to complete. During the update process, the screen on your BRAVIA television will display progress information, or may be blank. This is normal. Please do not remove the USB storage device until the update is complete.
- 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 unusable and require repair.
- WARNING: Do not press any button, except as instructed, until the update is complete. Doing so may damage your TV and make it unusable and require service.
- Unplug any USB devices connected to the USB inputs on the TV before starting the firmware update.
- Power on the TV.
- Make sure no other USB devices are connected to the TV.
- Insert the USB storage device containing the update file into the USB port located on the side of the TV.
- Note: The USB storage device can only be inserted into the USB port slot one way.
- Once the USB storage device has been detected, a series of different messages will appear on the TV set. Please follow the on screen instructions.
- WARNING: Do not turn off the TV or disconnect it from the power supply during the update process. Doing so may damage your TV and make it unusable or require service.
- When the file is finished copying from the USB storage device, the update process will begin and the POWER indicator on the TV will begin flashing white. After several minutes, the TV will turn off and then turn back on to complete the update.
- Please wait until a message appears indicating The software update is complete.
- CAUTION: During the firmware installation process, do not remove the USB device, turn off the TV, or disconnect the TV from the power supply.
- When the software update is complete, remove the USB device from the TV, and then click OK by pressing the Enter Enter Button button on the remote control.
- The update process is now complete. You may delete the update files from the USB device or reformat the USB device.

Important Notes:

- If either message An error occurred during the software update or Software cannot be updated using this USB device is displayed on the TV screen, please proceed to the following procedure for a possible solution:
- Verify your USB device is in good working order and perform the Download and Transfer process again.
- Press the POWER button on the TV to power off the TV.
- Press the POWER button on the TV again to power on the TV.
- Perform the Updating the Software process again.
- Note: If the message No newer version of the TV software was found is displayed on the TV screen, your TV already has the newer firmware installed.

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.