Hacking Potential reason for random errors on N3DS after downgrading?

[moghedien]

Where does it grab the installed titles and their versions from?

Hard coded in the "titles.h" file. There's also an option to generate the "titles.h" file from your system.

Edit: oh, do you mean the ones on the system it's checking? I use the AM services.

 

[zoogie]

Ok I finished my homebrew
It compares your installed NAND titles to the ones that should be in 9.2.0-20U (I used the CTR-N-HASE version from your list, since mine is odd).
Source is here: https://github.com/svanheulen/downgrade_check
Compiled version is here: https://github.com/svanheulen/downgrade_check/releases
There's plenty of room for improvement so feel free for fork it and send me pull requests.

Edit: Now that I think about it, it compares the version and the size, which I got the size of CTR-N-HASE from my odd version so that might show a mismatch even if the version matches. Can someone give me the size of the 0x200b version?

Is the system you used for the release build new or old 3ds?

Very cool app btw. I have an internet updated 9.2.0-20U old3ds that's practically untouched (completely clean). I think it would be a good template to judge others by. I'll upload it's titles.h later today.

Edit: I think it's a bad idea to compare size. Title ID and version are good enough. Sign checking on the 3ds validates the rest.

 

[Krude]

Cool stuff, will you include the checks for the EUR versions, too?

 

[moghedien]

Is the system you used for the release build new or old 3ds?

Very cool app btw. I have an internet updated 9.2.0-20U old3ds that's practically untouched (completely clean). I think it would be a good template to judge others by. I'll upload it's titles.h later today.

I used my MH4U special edition N3DS running 9.2.0-20U (which is what came on it).

Cool stuff, will you include the checks for the EUR versions, too?

I can expand it to other version/regions. Someone with a clean install will need to generate the "titles.h" file though.

 

[zoogie]

I used my MH4U special edition N3DS running 9.2.0-20U (which is what came on it).

I can expand it to other version/regions. Someone with a clean install will need to generate the "titles.h" file though.

That would explain all the title mismatches I got on the same firm vers/region. I have an old 3ds.

I don't think it's necessary to compare size. title id and version locks the title to a known standard.

 

[moghedien]

That would explain all the title mismatches I got on the same firm vers/region. I have an old 3ds.

I don't think it's necessary to compare size. title id and version locks the title to a known standard.

Yeah, good point. Give me a bit, I'll change that in my code and upload a new compiled version.

--------------------- MERGED ---------------------------

Ok, there's a new version up: https://github.com/svanheulen/downgrade_check/releases

 

[zoogie]

Ok, here's my version with an old 9.2.0-20U clean system.
It's a crystal blue 2ds original firm 7.1 internet updated to 9.2.0-20U. No modifications whatsoever.

 

[Pacman`]

@Aroth
I've made an exception list that shows 5 more titles (in addition to your 2 and the one for amiibo settings).
Let me know what you think.

Edit: New Final list v3 is complete.

Edit 2: Yet another edit

I just noticed these 3 titles in the list:

NO YES 0004800542383841 USA DS Internet (DSi-mode application) v2048 0x0800 9.7.0-25 v2048 0x0800
NO YES 00048005484E4441 USA Download Play (DS-mode application) v1024 0x0400 9.7.0-25 v1024 0x0400
NO YES 0004800F484E4841 USA Nintendo DS Cart Whitelist v11264 0x2C00 9.7.0-25 v11264 0x2C00

should be OK (don't really understand - blame Nintendo!)

Edit 3: Just get v4

 

[moghedien]

Another new release, skips DSi titles and prints info about installed/expected title version: https://github.com/svanheulen/downgrade_check/releases

 

[Pacman`]

Another new release, skips DSi titles and prints info about installed/expected title version: https://github.com/svanheulen/downgrade_check/releases

Thank you very much for your nice app.
It helped a lot

 

[moghedien]

Thank you very much for your nice app.
It helped a lot

Glad I could help
Keep in mind that the version on my github is only for checking N3DS downgraded to 9.2.0-20U, but I'm working on making so you can pick the version/region/new/old (probably wont finish today though).

 

[Chunbe]

Ok, here's my version with an old 9.2.0-20U clean system.
It's a crystal blue 2ds original firm 7.1 internet updated to 9.2.0-20U. No modifications whatsoever.

Ran this on my downgraded from 10.3 Hyrule Gold O3DS XL. Got the expected 3 extra titles but there's also 1 missing title? What's is it?
My check log is below.
Extra title ID 0x0004013000004002
Extra title ID 0x0004003000009e02
Extra title ID 0x0004001b00019002
Missing title ID 0x000480044b385545

 

[zoogie]

Ran this on my downgraded from 10.3 Hyrule Gold O3DS XL. Got the expected 3 extra titles but there's also 1 missing title? What's is it?
My check log is below.
Extra title ID 0x0004013000004002
Extra title ID 0x0004003000009e02
Extra title ID 0x0004001b00019002
Missing title ID 0x000480044b385545

That missing one is a dsiware game. Ignore it.

Also he's updated with some important fixes.
https://github.com/svanheulen/downgrade_check/releases

I'll build a new updated one with my clean title.h. Give me a minute.

 

[Pacman`]

10.3.0-28U to 9.2.0-20U DG on N3DS:

I'm wondering now if I should downgrade those 2 titles that I missed (102 to 104 to 106 titles should be in the 9.2.0-20U_n3DS pack).
Namely, 0004013000001A02 and 0004013000001B02 in addition of course to Aroth's 0004009B00010402 and 0004001B00010802.

 

[SomeGamer]

Were any titles added between 9.2 and 10.3?

 

[Pacman`]

Don't you fucking read anything?
It's only 6 pages too

 

[zoogie]

That missing one is a dsiware game. Ignore it.

Also he's updated with some important fixes.
https://github.com/svanheulen/downgrade_check/releases

I'll build a new updated one with my clean title.h. Give me a minute.

Ok, updated 9.2 downgrade_checker attached. Mainly it skips over dsiware games and prints version diff info in the change.log.

 

[Chunbe]

10.3.0-28U to 9.2.0-20U DG on N3DS:

I'm wondering now if I should downgrade those 2 titles that I missed (102 to 104 to 106 titles should be in the 9.2.0-20U_n3DS pack).
Namely, 0004013000001A02 and 0004013000001B02 in addition of course to Aroth's 0004009B00010402 and 0004001B00010802.

What I did was, in sysnand, run minipasta and install sysUpdater.cia using FBI. Then, using sysUpdater (after rerunning minipasta) to downgrade with only the four missing cias from the O3DS 9.2 files in the updates folder. Rechecked the version of the titles through FBI after that and everything looked fine. (Also, deleted sysUpdater (CTR-N-UDTR) after being done with it.)

 

[Pacman`]

What I did was, in sysnand, run minipasta and install sysUpdater.cia using FBI. Then, using sysUpdater (after rerunning minipasta) to downgrade with only the four missing cias from the O3DS 9.2 files in the updates folder. Rechecked the version of the titles through FBI after that and everything looked fine. (Also, deleted sysUpdater (CTR-N-UDTR) after being done with it.)

OK, so you went ahead and it's fine?
Did you notice anything strange before you DG'ed those 4 titles?

 

[Chunbe]

OK, so you went ahead and it's fine?
Did you notice anything strange before you DG'ed those 4 titles?

Nope, just downgraded those four for a proper complete downgrade since haven't set up anything related to emuNand due to waiting for a bigger SD card to arrive. (Still using the included 4GB micro sd).

Nothing out of the ordinary with browserhax, themehax, or any homebrew I've tried so far.