How to Unlock Dark Tooth in Twisted Metal 2 PC (english version)

Regedit code: 0E
Gameshark code: 8003434A 0E0E

DOWNGRADING FROM OFW 6.10 TO CFW 5.50 ON PSP (Part 1 of 4)

1ST DOWNLOAD (TO OPEN THE FOLDER):
WinRAR
http://www.rarlab.com/download.htm

2ND DOWNLOAD
PSP Grader v008
http://pspslimhacks.com/psp-grader-v008/

3RD DOWNLOAD:
OFFICIAL FIRMWARE 5.00
http://www.psp-hacks.com/file/1568

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