Sony PSP Firmware Downgrader 2.71 to 1.50
In case you missed it, using a kernel hack, you can downgrade your 2.71 version firmware to 1.50.
Read more about it at:
And grab the full set of files, including 1.50 ROM related from:
This is a great news for people who have upgraded, but wants to play home brew games and cannot do so with 2.71 firmware. As most you know already, v.1.50 firmware allows many home brew