i got my psp in china and it was 1.50 then they upgraded it to 3.100 ea'r+. Anyone got any info on it like if i can just upgrade it to any oe version or how to downgrade it back to 1.50. Googled it but all i are some Chinese pages( cant read it, i suck >_>). so if anyone could translate it for me that would be great to. I can play iso's by putting them into my iso folder and use gpsp.