Question about Firmwares - PSP Home, Your #1 PSP Stop For All Things Sony PSP

VDOgmr · 03-17-2007, 02:57 AM

Can someone explain to me what the heck are ISO's and OEA's? (is that what it's called? OEA?)

Thanks

INU999 · 03-17-2007, 03:58 AM

OEA stands for Open edition A

evolve · 03-17-2007, 04:23 AM

An ISO image (.iso) is a term for a disk image and is refered to any optical disc image. Basically its data files and all the filesystem metadata, (boot code, structures, and attributes) of a CD contained in a single file. Such as a PSP UMD in one file, or a PC game in one file.

OEA is a revision of a custom firmware made by Dark_AleX. If you want custom firmware, you need 1.50 firmware and on that you can play PSP ISO's.

I suggest that you do some more research on your own if you would like to know more about this

xx-reecey-xx · 04-14-2007, 11:53 PM

hmm whats the difference between oe-a, oe-b, oe-c
sorry for double posting in different places

bah · 04-15-2007, 04:45 PM

When there is the same firmware number, then OE, then a letter, the letter is just the revision number.

Newer versions Dark_Alex has released to fix bugs/add something, but still based on the same sony firmware (ie 3.03).

evolve · 04-15-2007, 07:55 PM

It's consecutive updates....

xx-reecey-xx · 04-17-2007, 09:04 PM

k thanks guys

jhoni Indo · 04-18-2007, 09:06 AM

I have PSP, Ihave upgrade from v 1.50 ti ver 2.85, and than ver 3.03.
now I have problem. I can not play the game with my memory stick. I want somebody help me, how can I play with memory stick again. Thx.

bah · 04-18-2007, 04:29 PM

DO NOT update any further.

To downgrade and get homebrew access back, you will need to downgrade back to 1.5.

To do this you will need a copy of the original (unpatched) release of GTA: Liberty City Stories (the one with firmware 2.0 on the UMD).
Using this you can downgrade by following THIS Guide.