PS3 Update to System Software 4.89: Here's a Full Guide for You
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PS3 Update 4.89 Now Live; Adds Additional Account Protection
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Sony PlayStation 3 Firmware 4.90 Download | TechSpot
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PS3 Update to System Software 4.89: Here's a Full Guide for You
Sony Pulls Down 2.40 PS3 Firmware | WIRED
PS3 just got a new system update, a month before its store was originally set to go offline | GamesRadar+
PlayStation 3 system software - Wikipedia
PS3 System Update 4.80 Now Available To Download | Attack of the Fanboy
PS3 Firmware 3.00 Download / Update Overview - YouTube
So there's a new update guys... wonder what's different : r/PS3
How to get PS3 Firmware update 4.90 for installing, Google and Edge covered in the video - YouTube
PlayStation 3 - Wikipedia
