PC Stats has an article on how to unlock the AXP2100+. It seems that things have got a lot more complicated....
Full article:
http://www.pcstats.com/articleview.cfm?articleID=1009
Dunno whether it's worth the trouble!
The reason I found it so frustrating trying to unlock the XP 2100+ was because the L1 technique simply wasn't working anymore!
Full article:
http://www.pcstats.com/articleview.cfm?articleID=1009
Dunno whether it's worth the trouble!