Fat psp with 3.52 m33 won't read iso or cso's

Ok, I have a fat PSP with 3.52 m33 on it, but when i put .iso's on it, it doesn't play them, it says there is an error. I thought that maybe if i updated the cf to 3.71 m33 or something it would fix the problem. What can i do to get it to be able to play the games?

Thanks

What ISOs are you trying to play?

I really suggest that you upgrade to 3.90M33 however.

ok, can you post a link to a tutorial i should use or something? i don't know much about upgrading

Obtain the upgrader from Dark-Alex.org and the 3.90 EBOOT.

Place the UPDATE folder in the GAME folder and rename the 3.90 EBOOT to 390.PBP, and drop it in the UPDATE folder as well.

Run the upgrader with your charger in and you're done

Have a nice night!

FORMAT FORMAT FORMAT
lol lol
what floder are u puttin it in

Ok, I have a fat PSP with 3.52 m33 on it, but when i put .iso's on it, it doesn't play them, it says there is an error. I thought that maybe if i updated the cf to 3.71 m33 or something it would fix the problem. What can i do to get it to be able to play the games?

Thanks

Some may not play without a UMD in the drive. Try putting one in?

You have 3.90 right SnS? You can set it to UMD free mode in the VSH or Recovery Menu, you know?

You have 3.90 right SnS? You can set it to UMD free mode in the VSH or Recovery Menu, you know?

Oh really? Didn't know that, spent hours figuring out what was wrong yesterday while trying to get Patapon playing How do I do that exactly? What's VSH?

In the XMB press "Select" and just scroll down to UMD ISO Mode and switch it from default to either M33 driver(Good) or $0NY NP9660(Best).

In the XMB press "Select" and just scroll down to UMD ISO Mode and switch it from default to either M33 driver(Good) or $0NY NP9660(Best).

What's XBM?

The main menu when you turn your PSP on, with the Game, Photo, Video, Internet Browser, and Music icons.

Yea it stands for Xross Media Bar.

naw.............really
lol lol just kiddin adventwolf.....

In the XMB press "Select" and just scroll down to UMD ISO Mode and switch it from default to either M33 driver(Good) or $0NY NP9660(Best).

well finally, i've been asking what exactly is the best way to run ISO's with No UMD for weeks and nobody gave me a straight answer. Isnt the SonyNP9660 made for sony store downloads and whatnot? And i've always wondered what exactly is the m33 driver

In the XMB press "Select" and just scroll down to UMD ISO Mode and switch it from default to either M33 driver(Good) or $0NY NP9660(Best).

well finally, i've been asking what exactly is the best way to run ISO's with No UMD for weeks and nobody gave me a straight answer. Isnt the SonyNP9660 made for sony store downloads and whatnot? And i've always wondered what exactly is the m33 driver

Generally, PSN downloads are ISOs put into EBOOT form`