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iedwardsIII · 06-05-2008, 01:12 AM

The answer to your second question is yes, you do have to downgrade.
New custom firmware's allow your PSP to do more things. The 3.90 M33-3 custom firmware is the only custom firmware to allow your PSP to use Skype.
All the differences are listed here.

06-05-2008, 01:12 AM	#2 (permalink)
iedwardsIII Senior Member PSP Mad Hacker Join Date: Feb 2008 Location: Berkeley, Ca Posts: 967 Firmware Installed: 4.01 M33-2 :(	Difference Between Different CFW's? The answer to your second question is yes, you do have to downgrade. New custom firmware's allow your PSP to do more things. The 3.90 M33-3 custom firmware is the only custom firmware to allow your PSP to use Skype. All the differences are listed here. __________________ Firmware History: fat: OFW up to 3.30 - Lumines - 3.40 OE-A - 3.71 M33 - 3.80 M33 - 3.80 M33-5 - Stolen slim: OFW 3.60 - 3.60 M33 - 3.80 M33 - 3.80 M33-4 - 3.90 M33 - 3.90 M33-3 - Broke - 4.01 M33-2 Important Links: OFW --> CFW Guide PSP Official Firmware Eboots PSP Battery Service Tool 3.xx Emulator Pack PSP Faceplates, Backplates, etc. What Everyone on this Site is