PSP UPGRADING AND DOWNGRADING

PSP UPGRADING AND DOWNGRADING FIRMWARE

firmware:

Official Sony Firmware updates for the Playstation Portable. Official Firmware Updates. Please select below:
Official PSP Firmware 6.39
Official PSP Firmware 6.39 for PSP Go
Official PSP Firmware 6.38
Official PSP Firmware 6.38 for PSP Go
Official PSP Firmware 6.37
Official PSP Firmware 6.37 for PSP GO
Official PSP Firmware 6.35
Official PSP Firmware 6.35 for PSP GO
Official PSP Firmware 6.31
Official PSP Firmware 6.31 for PSP GO
Official PSP Firmware 6.20
Official PSP Firmware 6.20 for PSP GO
Official PSP Firmware 6.10
Official PSP Firmware 6.10 for PSP GO
Official PSP Firmware 6.00
Official PSP Firmware 5.50
Official PSP Firmware 5.03
Official PSP Firmware 5.00
Official PSP Firmware 4.05
Official PSP Firmware 4.01
Official PSP Firmware 4.00
Official PSP Firmware 3.90
Official PSP Firmware 3.80
Official PSP Firmware 3.71
Official PSP Firmware 1.50

6.XX Downgrader v4.1

Downgrade your PSP from firmware 6.31, 6.35, 6.38, 6.39 or 6.60 to any desired [official] firmware ... as long as your desired firmware is greater than or equal to the factory installed firmware (OFW) when you purchased your PSP.

This is a port of Davee's 6.31/6.35 downgrader, released by some1.

v4.1 Changes

• Added Source Code
• Added Safety net just in case, for some reason, your psp does not have the 0x51 key, the safety net sets minimum version to 6.35 if you were getting an error from v4.
• Includes Proxima's prxencrypter with gzip support.

Attachment	Size
6.xx Downgrader v4.1.zip	1.26 MB

PSP Custom Firmware PRO-B10 (Fix1

Attachment	Size
660PRO-B10.fix1_.rar	1.02 MB
639PRO-B10.fix1_.rar	1.02 MB
635PRO-B10.fix1_.rar	991.4 KB
620PRO-B10.fix1_.rar	1.08 MB
660PRO-B10.rar	1.02 MB
639PRO-B10.rar	1.02 MB
635PRO-B10.rar	991.25 KB
620PRO-B10.rar	1.08 MB