Sony PlayStation 3 Firmware 4.91

Changes:

- This system software update improves system performance.

Update procedure:

- Create a folder on the storage media in which to save the update data (ROOT/PS3/UPDATE.
- Using a PC, create a folder named “PS3” on the storage media or USB device.
- Within the PS3 folder, create a folder named "UPDATE".
- Download the update data and save it in the "UPDATE" folder.
- Insert the storage media or USB device that contains the update data in the PS3 system.
- From the home menu, select Settings > System Update, and then press the X button.
- Select [Update via Storage Media], and then press the X button.
- The system automatically searches for and finds the update data saved on the storage media or USB device.
- Press the X button to start the update. Follow the on-screen instructions to complete the update.
- After the update has been completed, go to Settings > System Settings > System Information.
- If the System Software field displays the version number of the update, the update was successful.

Notice:

- Do not turn off the PS3 system during an update. If an update is cancelled before completion, the system software may become damaged, and the system may require servicing or exchange.
- During an update, the power button on the system front and PS button of the controller are inactive.
- Be sure to save the update data as noted below. If the data is not saved in the correct way, the PS3 system will not recognize the update data. The folder name must be in all uppercase letters.
- Location: Save in the “PS3” folder > “UPDATE” folder
- File name: Save as file name “PS3UPDAT.PUP”. 

About Gaming Console Firmware:

Upgrading the firmware version on your gaming console might enhance the unit's overall performance and stability, include workarounds for various issues, and improve different features (or add support for new ones).

In addition to that, if you have updated the firmware and it either faulty or has caused a drop in the overall performance of the device, applying a previous version is handy as regards recovering the console's functionality. On the downside, downgrading the firmware isn't always possible.

When it comes to applying a certain firmware, as this process is not without risks most of the times, it is recommended that this task be initiated by a power user in a steady power environment, such as the one provided by a UPS unit. However, the installation can also be performed by a regular user at their own risk.

As for the installation method, given the large variety of gaming consoles and the various ways for applying a firmware, before even considering an upgrade or a downgrade, it's best that you carefully read and understand the installation steps, and initiate the process only once you have familiarized yourself with the update method.

That being said, if you have duly considered all these aspects, either click on the download button to get the present release, or check with our website as often as possible to find out first when the firmware that you desire is available.