I'm having a firmware problem with a 1000-series PSP. [more inside]
posted by tomboko on Jun 1, 2009 - 2 answers

PSP n00b Filter: How to upgrade the firmware of a PSP that has custom firmware? [more inside]
posted by Admira on Feb 2, 2009 - 5 answers

Bricked my friend's PSP while trying to get it updated to firmware 3.80 M33. Help me get it back to working order. [more inside]
posted by porn in the woods on Jan 17, 2008 - 2 answers

What's the latest/greatest custom firmware for my psp? [more inside]
posted by juv3nal on Oct 10, 2007 - 2 answers

I was just "upgraded" to a Custom PlayStationPortable Firmware (3.52 M33-4). I need help understanding/learning how to use it. [more inside]
posted by Master Gunner on Oct 1, 2007 - 3 answers

Does anyone have clear instructions on how to downgrade PSP firmware from 2.71? [more inside]
posted by milovoo on Mar 14, 2007 - 5 answers