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PS3 System Software v.4.21: F/W Only (USA) : Free Download, Borrow, and Streaming : Internet Archive
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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
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What is this PS3 System Software Update Disc? How it was made available? Are there more like this? - Arqade
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What is this PS3 System Software Update Disc? How it was made available? Are there more like this? - Arqade
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