Sony has made firmware 3.21 available for PlayStation 3 game consoles. This update removes the “Install Other OS” feature from PlayStation 3 consoles which were released before PS 3 Slim. Basically, you won’t be able to run other operating systems like Linux kernel based OS on your PS 3. The new firmware 3.21 update brings new features and improvements. It is crucial for connecting the console with PlayStation Network and play games that require firmware 3.21 or higher.
However, various Playstation 3 users who are currently using the “Other OS” feature of their PS3’s can opt not to upgrade their PS3 systems to the latest 3.21 firmware update.
In addition, for those who are willing to update their PS3 systems to this latest 3.21 firmware which is around 100MB, they should back up first all data stored in their Playstation 3 hard drives as they can no longer access these after installation of the latest PS3 firmware 3.21 update.
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