Asian PSP 1.51 is possible to to downgrade 1.5 japnese ROM

[sohailag]

I have PSP asian 1.51 is that possible to me to first upgrade to 2.0 JAP & than downgrade to 1.5 JAP. I read all proses I just want to no that in Asian PSP japnese ROM working without any problem or will problem for me.

One thing more I think to buy 2.0GB memory stick to run the games like burnout legend or etc. any advice

[urmom9388]

Yes other firmwares work. If you are buying the 2.0 gig for free games then that ilegal. Isos are only legal if you own the game first. I don't think you really need a 2 gb. a 1 gb is fine