If you saw a reference to "4.89" online, it is likely a for version 4.90, or an unofficial/beta custom firmware (CFW) not supported by Sony. Sony’s official servers no longer host version 4.89.
You can download the official 4.89 firmware (PS3UPDAT.PUP) to update your system manually via USB.
If your PS3 prompts you to install "4.89," cancel the update and install 4.91 manually instead. You can also update directly from Sony’s server via Settings > System Update > Update via Internet on your PS3.
If you cannot update via the internet, follow these steps to use a USB drive: PlayStation How to update PS3 console system software - PlayStation ps3 system software update 489 download link
To enhance security, the 4.89 update made it mandatory to use a device password when signing into PSN, rather than your main account password.
If the update fails during installation:
Inside the PS3 folder, create a new folder named (use all capital letters). If you saw a reference to "4
PS3 System Software Update 489 Download Link: Guide & Install
and the transition away from console-based account management: Mandatory Device Setup Passwords
Users are now required to generate and use a Device Setup Password to sign into the PlayStation Network (PSN) on the PS3, replacing traditional passwords for log-in. If your PS3 prompts you to install "4
Double-check your folder names. Ensure "PS3" and "UPDATE" are completely capitalized and that the file extension is .PUP , not .PUP.txt .
Before starting the update process, gather the following items: A PC or Mac with internet access. A USB flash drive with at least 500 MB of free space. A standard USB mini-cable to connect your PS3 controller. Formatting the USB Drive
The direct file name for the PS3 system update is . You can download the official Sony version using the links below: