PlayStation 3 Update 4.90 Releases: What You Need to Know
Surprise! There's a new PS3 firmware update - here's what patch 4.88 does | TheSixthAxis
How to update playstation 3 system software - YouTube
PS3 Firmware 4.90 is out! (and you really don't want to update) - Wololo.net
PS3™ | System Update
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PlayStation 3: Sony releases Firmware 4.87 for their 14 year old console - HFW 4.87.1 is already out with SEN Enabler already being updated to spoof FW 4.87 - Wololo.net
PlayStation 3 firmware update coming June 27th, promises to fix bricked systems | Engadget
PS3 Firmware Update 4.87 Is Out, Here Are The Details