Can't update from 1.50 OFW

[marvolo1300]

Hi, I just downgraded my psp to 1.50 with Hellcat's Recovery Flasher. The trouble now is that I can't install 5.00 M33. Which firmware would i update to before going to 5.00 M33.

[marvolo1300]

It is solved. Who ever has the same problem install kxploit on your psp then the update. Drag the two folders which are inside the kxploitpsp.rar file to your GAME folder.