I have a psp 3004 firmware 6.20
how to upload the software on a permanent alteration?
Go on to 6.60, or not?
6.20 on more plug-ins work?
I read that at 6.60 / 6.61 is constant, but is also on a 6.20?
EDIT:
I found three versions of the 620-PRO-2015-02-14_MOD-2015-03-33-F and 620PRO-B10.fix1 and 6.20 PRO-C2
All are safe in 3004? Which one is better?
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