is there a 5.01 custorm firmware out?
i need it beacouse i cannot play iso games. it says data corrupted?
why can somebody help me?
allways when i download some games and i try to run it than it says “data corrupted”. plzzz somebody help me?

there are no 5.01 custom firmware out yet. you must downgrade it to latest custom firmware like 4.01 m33-2 to play iso game . i just go to the store i bought the psp and ask them to downgrade it. poof.. now i can play iso game..

can i downgrade psp in any store?

how can i downgrade my psp if i have a 5.01 firmware?
i dont wanna fuck my batterey and so on .
is there any other ways do downgrade my psp?

ok a few questions for crashhh, is this guide for downgrading ofw 5.01 also? and i would need to hard mod it either way to play iso cso or even install cfw? correct me remove or add if i am wrong….options: 1.wait for new cfw, 2. hard mod and install latest cfw, 3. have someone downgrade for me.

Kaspar, if there was another [easier] way, do you think people will still do this MMS Pandora battery way?

Ps3r, yes it’s for any official firmware. I accidentally upgraded mine to 5.01, now I have a CFW since I followed the steps.

is theis pandora work?
and is it safe?
if it is than i have to to that.
i really need to downgrade my psp.
can somebody give me a simply steps how can i do this?

So they want less money, and since we can’t buy the game, then we go to pspiso.com and download the game instead to get it for free ^_^. real smart sony….

Uhh, no you dont need to wait for new cfw (DOWNGRADE) you go down to any cfw you want. Also you can hard mod, Or soft od if your friends have hacked or 1.50 PSP

the only other way is to buy a datel pandora battery @ $10.15 with free shipping around the world anywhere (Very Good BUY). Then you can do it.

i have the same scenario with you guys pls help me to downgrade it again or there is still a patch to use so that the iso/cso will work in 5.00 pls help

hey could anyone tell me how to run iso and cso files in psp with 5.01 firmware

Were you even reading previous posts on this thread?
You can’t run ISO/CSO games on an official firmware. 5.01 is one, and there’s no CFW for it yet. Either way you have to downgrade your psp firmware and don’t start asking HOW, I’ve already answered it several times on this thread. If you won’t then buy games in UMDs.

So there’s no other way but we must have a pandora’s battery,
so when will cfw for 5.01 released ?

crash, whats the guide that you follow? i want to know, my version is 5.01 , i want to downgrade it

can you give me your email crash, i need helpp

Follow this guide
http://pspslimhacks.com/forum/index.php/topic,355.0.html

i did follow everything, but when i put my datel battery tool in it, all i see is a green light and blank screen

i followed the instruction carefully, i did everything until till when i put my datel battery in the psp, it only lights up with green light, but black screen

And you followed this:
\/ Please Read The Following Instructions Carefully \/

1. Take out any battery and insert your magic memory stick in your psp
2. Connect your ac adaptor and insert your Pandora battery WHILE holding L (or whatever you assigned)
– If it doesn’t start automatically, just turn on the psp with the switch like normal.

I have the mod chips n all installd, only the 5.01 software problem.Will I too hav to go thru all dat? Sorry for bein sucha blockhead.

Yes, that’s the ONLY WAY to downgrade a psp w/ an OFFICIAL FIRMWARE.

Please release the cfw 5.1 soon pleeeeeeeeeaaaaaaaaaaaaase!

Thank you crashhh.N now I will patiently wait for 5.01 to release.(gulp)

does anyone knows or have any ideea when cfw 5.01 willbe relessed ?? i’d love to know that too

crash, i told you, i followed the instruction very carefully, 1. Take out any battery and insert your magic memory stick in your psp
2. Connect your ac adaptor and insert your Pandora battery WHILE holding L (or whatever you assigned)
- If it doesn’t start automatically, just turn on the psp with the switch like normal., still no work, are you sure that i can downgrade it, coz i got 5.01 OFW

Found cfw for 5.00 m33-3 (website above)

http://dl.qj.net/CFW-5.00-M33-3-release-PSP/pg/12/fid/24498/catid/114
(cfw for 5.00 m33-3)

http://www.n4g.com/psp/News-234322.aspx
NEW 5.02 FIRMWARE!!!!!!!!!!!!!!

i want to downgrade, not upgrade, stupid

downgrade 5.1

does somebody knows something about cfw 5.01

hey i have a new psp 3000 series with ofw 4.20 whats the best firmware to install

someone help me to downgrade ver 5.01 please.
i tried to play iso game folder and it doesn’t work
i tried all my best,there is not tinhgs.
all i need is a pandora battery and a magic memory stick.
send me those items.

notice:let me known now

AAAAAAAAAAAAAAAAaaaaaaaaaaaaaaaaaaaaaaaaahhh!!!!!!

Let there be 5.01 M33!!!

wa i want for a release of cfw 5.01 m33(in here ^^) for me psp wa! cant play games! still me just go on music/videos SUCKS! i knew that i shouldn’t update me cfw….anyway waaa!!! =_=

press x on blank screen

crash

http://www.torrentreactor.net/find/psp-system-software-5.01-m33

THIS IS 5.01-M33!!!!!!!!!!!!!!!!!!!!!!

WAAAA

5.02!!!!!!!!!??????

PANDORA TIME I GUESS

Guys not sure if this was mentioned above (sorry for not reading) i have the same problem, upgraded to 5.01 m33-4 and couldnt play cso/iso’s, if you hit select you get the m33 VSH menu, on the 4th option down ‘UMD ISO MODE’ is probably on ‘NONE’ change that to the ‘SONY NP9660′ now i can play my cso/iso’s, hope this helps

dose this firmware work on the fat psp??

where can i download the 5.01 m33-4 for psp 2000???

pls i need it to. i been crash my head a lot with this problem pls help v5.02 if this is downgradable.

I only have one question.,well, actually more than one.I will admit I am not very technicle lol, but there is only one game I want to play on my psp and that game is oddworld abe’s exodus.I have been doing my homework and I hear about firmware and such,but I don’t know anything about it.My question is :is there any way I can get an extra memory stick and download oddworld abe’s exodus to it and play it on my psp without to many complicated details that I will f*** up.Any help would be greatly appreciated.Thanks,Terry