Anyone manage to downgrade to 1.63 from 1.70 firmware?

KINGOFNOOBS · January 06, 2007, 09:01:57 PM

It seems that 1.70 breaks almost all homebrew abilities. I can't run any homebrew at all. Anyone know how to downgrade if possible?

tenba · January 09, 2007, 06:10:08 PM

I haven't found a way to downgrade to 1.63, but the homebrew I've tried works under 1.70 in some way or another: DSLinux, Moonshell, DSOrganize (but I have to run it from within Moonshell -- I don't understand why, but it works), Rein, libWiFiTest, DSAim, and DSLua.

zektor · January 09, 2007, 06:24:22 PM

What "homebrew abilities" does v1.70 break? Seems the same compatibility wise as it was in v1.63.

dai_uk · January 10, 2007, 07:37:57 AM

I downgraded my SC CF from 1.7 to 1.63 to see if castlevania worked, but then found i needed a faster CF card so got that and now on 1.7

sardaukar · January 11, 2007, 02:07:55 PM

Downgrade to run homebrew? LOL this ain't PSP

zektor · January 11, 2007, 08:28:32 PM

Quote from: "sardaukar"Downgrade to run homebrew? LOL this ain't PSP

Got that right

No reason to downgrade to v1.63, unless you enjoy taking steps backward in terms of rom support.

dantheman · January 12, 2007, 06:04:18 PM

Quote from: "zektor"
Quote from: "sardaukar"Downgrade to run homebrew? LOL this ain't PSP

Got that right No reason to downgrade to v1.63, unless you enjoy taking steps backward in terms of rom support.

QPC saving is broken for me in 1.7 on my SC miniSD. I searched around and found that it was indeed the firmware that was causing it, so I downgraded to 1.63b, which fixed the issue.

I use QPC saving for SnezziDS and other DS homebrew, so I kinda needed the functionality. I was psyched when the new patcher was announced, but as a new firmware version did not accompany it, my enthusiasm was in vain, heh.

KINGOFNOOBS · January 12, 2007, 07:27:57 PM

How did you downgrade?

tenba · January 12, 2007, 07:43:05 PM

Quote from: "KINGOFNOOBS"How did you downgrade?

You didn't say what kind of SC you have, by the way. Note that the people who downgraded had an SC miniSD and and an SC CF.

Altor · January 12, 2007, 08:08:38 PM

I still use 1.63, it's the best firmware so far IMO, based on the problems I've heard about with 1.7.

KINGOFNOOBS · January 12, 2007, 08:24:15 PM

Oh, I had Supercard Lite, probably impossible then.

dantheman · January 12, 2007, 09:14:45 PM

Yeah, what exactly is the situation with SC Lites and downgrading? I remember a few weeks ago that the Supercard team released instructions for restoring 1.7 when attempting to downgrade bricked the SC Lite, but no instructions for actually downgrading. Has this changed or are SC Lite users stuck with 1.7? I'm curious, as this issue has come up in the past at other forums I go to.

EDIT: Oh, and downgrading for me was as simple as downloading the older firmware version and booting it on my SC miniSD. It worked fine, although I had to repatch my DS games that were made with the newer patcher.

tenba · January 12, 2007, 09:40:10 PM

I've asked before about downgrading a SC Lite, and I'm not entirely sure I've understood things properly, but this is what I think is going on:

There are two types of firmware files: .bin and .scu. The .bin files are full firmwares. The .scu files are upgrades only and don't have a full firmware. The .bin file for the platform can always be used because they're the full firmware. The .scu files, however, can only work under certain circumstances (between certain versions) because they're designed as upgrades only. On the SC Lite, we basically can't downgrade from 1.70 because none of the .scu files will work going from 1.70 to any other version, and there are no .bin files earlier than 1.70 available for the SC Lite. For the other types of SC, there are apparently .bin files that can be used to downgrade safely.

Again, I could very easily be wrong as I might not have properly understood what I was told. The basic message I took away is that there's (currently) no way to successfully downgrade a 1.70 SC Lite.