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Below are the official Sony PSP firmware updates. They were all made and distributed by SONY. You can visit their website here


Version 1.x
Download version 1.50

Version 3.0x
Download version 3.00
Download version 3.01
Download version 3.02
Download version 3.03

Version 3.1x
Download version 3.10
Download version 3.11

Version 3.3x
Download version 3.30

Version 3.4x
Download version 3.40

Version 3.5x
Download version 3.50
Download version 3.51
Download version 3.52

Version 3.7x
Download version 3.70
Download version 3.71
Download version 3.72
Download version 3.73

Version 3.8x
Download version 3.80

Version 3.9x
Download version 3.90
Download version 3.93
Download version 3.95

Version 4.xx
Download version 4.00
Download version 4.01
Download version 4.05

Version 5.xx
Download version 5.00
Download version 5.01