PS3 Update to System Software 4.89: Here's a Full Guide for You
Fire up your PS3, it just received a new system update – Destructoid
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New PS3 Firmware Update 4.90 Now Available to Download
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PlayStation 3 - Wikipedia
PS3 system update 4.89 removes PSN account creation | TheSixthAxis
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PS3 Update to System Software 4.89: Here's a Full Guide for You
Sony PlayStation 3 Firmware 4.90 Download | TechSpot
PS3 Gets Firmware Update 4.90
The PS3™ Guides: Updating Your PS3 - YouTube
Update Your PS3 System With The New Firmware Released By Sony - Webmuch
PS3 - 4.89 Update is Live! - Discussions / Details about the firmware update | Page 16 | PSX-Place
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PS3™ | System Update
PS3 Update 4.90 Released This Feb. 28 and Brings More of What Players Expect - MP1st
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