If you got a psp slim, IR keyboard doesn't work because there is no IR sensor.
If you got a psp fat, then i've tested pspirc etc ... only with 3.71-m33 cfw (afaik many of you encountered issues with earlier versions of cfw !)
If you just want to test your IR keyboard try this one :
http://zx81.zx81.free.fr/serendipity...t-program.html
You may also try the fw15 version with fw1.5 addon.
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