Hacking downgrading psp 3004 6.60 09g to 6.20

[danish]

hello! i have psp 3004 with 6.60 pro B-10 9g, want to downgrade it, every time i try to run chronoswitch downgrader it works ok but before start the downgrading it comes up with error.
(A later version of the system software is already installed. There is no need to update (CAAFFFFFCF7)).
please help me………!

 

[Rydian]

Where are you getting the downgrader from? Try the latest version.
http://filetrip.net/psp-downloads/firmware-related/download-chronoswitch-50-fix-f26583.html

 

[danish]

still now same problem.....!

 

[Deleted User]

still now same problem.....!

Hey there, why do you want to downgrade your firmware? i don't get it.

 

[Rydian]

6.20 can get a perm patch, 6.60's doesn't work on 3Ks.

 

[Deleted User]

6.20 can get a perm patch, 6.60's doesn't work on 3Ks.

Only that?
i have a 3004 slim and 90% of the time i just send it to sleep, not total shutdown. Which don't require to reaply the CFW and even if i shut it down it only takes like 5 seconds to run the fast recovery utility to re-enable the CFW.
I' asked because if there's no other benefit besides not having to do a "fast recovery" after turning off the console i would strongly recommend to stick with 6.60 and Pro C 6.60 fix3 or similar.
Right?

 

[Rydian]

Pretty much yeah that's the main difference, but some people insist on powering off.

 

[Deleted User]

Thanks that's the confirmation i needed to keep 6.60.
Sorry for hijacking your thread Danish but maybe not being able to downgrade is not that bad after all

 

[Foxi4]

Downgrading the system is not recommended - just use the Sleep function. Using Fast Recovery isn't that much of a pain if you fully power off either and you don't have to worry about downgrading which always entails a potential risk of doing more harm than good.

 

[Deleted User]

Downgrading the system is not recommended - just use the Sleep function. Using Fast Recovery isn't that much of a pain if you fully power off either and you don't have to worry about downgrading which always entails a potential risk of doing more harm than good.

Right, and i've read some games won't even run if you are not on 6.60 or that's just a myth?

 

[Foxi4]

Right, and i've read some games won't even run if you are not on 6.60 or that's just a myth?

Myth. I'm on 6.60 forever now and it runs anything I throw at it. Compatibility depends on the CFW used and the quality of the dump, not on the OFW. In fact, I recommend running 6.60 - there's absolutely no reason to go back to 6.20 at this point outside of the crude Perma Patch (it's a Power Hack and isn't exactly healthy for the system). Just be sure to always be up-to-date with PRO firmware on-board and you'll be fine.

Derpity derp derp - I misread the post above, my bad.

 

[SuzieJoeBob]

Go to this link, as it should contain the solution to your problem, and depending on your PSP 3000's FUSE CFG, the next issue you will run into.

http://wololo.net/talk/viewtopic.php?t=10528

You need to look at the post by PsPsiR1, as it will contain the links to the "6.20 Pre-Downgrader", the PSPident, the 6.20 OFW, the downgrader, and the "sleep mode fix".

 

[Deleted User]

Myth. I'm on 6.60 forever now and it runs anything I throw at it. Compatibility depends on the CFW used and the quality of the dump, not on the OFW. In fact, I recommend running 6.60 - there's absolutely no reason to go back to 6.20 at this point outside of the crude Perma Patch (it's a Power Hack and isn't exactly healthy for the system). Just be sure to always be up-to-date with PRO firmware on-board and you'll be fine.

You missread my post. I said some games won't run if you are not on 6.60.
When i bought my psp it was 6.35 the first thing i did was update to 6.60.
6.60 FTW! xD

 

[Foxi4]

You missread my post. I said some games won't run if you are not on 6.60.
When i bought my psp it was 6.35 the first thing i did was update to 6.60.
6.60 FTW! xD

Ah, sorry, I did indeed misread - excuse me, I'm pretty sleepy at this point. But yeah, woooo, 6.60!

 

[trumpet-205]

You missread my post. I said some games won't run if you are not on 6.60.
When i bought my psp it was 6.35 the first thing i did was update to 6.60.
6.60 FTW! xD

Pretty sure PSP works like PS3, that newer games are signed with keys that only newer firmware has. So some games doesn't work on lower firmware.

 

[Rydian]

Pretty sure PSP works like PS3, that newer games are signed with keys that only newer firmware has. So some games doesn't work on lower firmware.

It's not, they generally just check the value in version.txt in flash0.