3.40 OE-A Installation (PSP Custom Firmware)
READ THIS FIRST BEFORE SENDING PMs OR COMMENTING SIMPLE QUESTIONS! —***—***—***—***—*** 1. You must have downgraded to 1.50 before installing this; OR have another custom firmware previously installed before installing this. 2. Downgrading can be done with ONE PSP if you are on a firmware up to 3.50. Use this guide: forums.qj.net (No, downloading the games Lumines and/or GTA: Liberty City Stories will NOT suffice.) 3. If you are on an official firmware _above_ 3.50, you must …
Tagged with: CFW • Crazy • custom • days • diamond • firmware • Floyd • Gig • great • hacking • Happiest • iso • isos • Pink • playstation • portable • psp • Shine • Sky
Filed under: PSP Firmware
Like this post? Subscribe to my RSS feed and get loads more!
















what is custom firmware????
Can install this on mine if i have 5.00 m33-6 on my psp?
What is the file DATA.DXAR?
do i need to upgrade psp to 3.50 before i downgrade with 3.50 Downgrader ? …. or i can have 3.40 ? thx
i live in czech republic ( europe ) i have fat psp
and firmware ORIGINAL 3.40 …. someone in that forum says ” 1, update to 3.50 ” do i really need to do that ? … thanx
Yes, either get Lumines or a Pandora’s Battery. Since the Lumines version is much easier and the game itself is really funny, I strongly recommend you to buy the game. Follow this guide and you’ll make it in no time:
h t t p : / / forums. qj . net /showthread . php ? t = 90916
i have original firmware 3.40 …. do i need Lumines ? thx for reply
jus follow the guide properly, well i mixed the folders up easy mistake, check if u gt urs correct
What folder do you save in because i have that same problem
wow, the new m33 can be done straight from your psp without having a computer, I updated mine to 5.00m33-6 using the network update
I wouldn’t try it, try updating to 3.80m33 and then to 5.00m33 just to be safe.
re. i fixed this problem lol, was putting the files in wrong folder
hi i have 3.40 oe-a can i update to 5.00 m33-4?
Hey, i followed the instructions exactly, but 1 of my files in psp shows up as corrupted. i can load the “3.40 OE-A Firmware install” not the updater
. can u help me out.
where can i get the oeupdmaker?
please help
Sorry, the only way to downgrade would be to buy a Datel Service Battery (or another brand) and a Service Memory Stick (another name for it is “Magic Memstick”). If it works for one PSP, it should work for all the others as well.
i have 5.03 and 1 psp, everyone i know has the same firmware, how can i downgrade with i psp?
Why do you want to install 3.40 when 3.90 is later and also better? You can easily install the latest M33 version by entering Recovery Mode and activating “M33 Network Update”. Then enter XMB and press Network Update. It will check for the latest version and then download if you agree.
I guess it is possible, but it’s hard. Also, people don’t really search that much for downgraders now that the Pandora Battery is here.
I guess you can. But I don’t have Vista, so I don’t know.
M33 is just the new name of the releases that once were named OE.
i have 3.90 m33-3 but can i install 3.40 oe-a plz reply and quick
will they be able to create a down grader for official firm wire 4.05!! and how long would you think it will be!
can i download the file on vista. I have the hp touchsmart pc.
what is the difference between M33 and OE-a