Hacking Luma3DS - Noob-proof 3DS Custom Firmware

[peteruk]

thank you @Aurora Wright for this release, your hard work is appreciated

will have a go with this one, thank you

 

[Demon0no]

I'm trying to boot into patched 9.X but I my screen just glitches out for a second and then I get an generic "turn off your system" error.
I'm using A9LH, with emuNand on 10.6 and sysNand on 9.2

I have the firmware.bin and the firmware90.bin in the rei folder.
Booting into emuNand works without problems, booting into sysNand via holding R works also fine, but booting the firmware90.bin via holding L doesn't boot...
Tried reinstalling AuReiNand (now on v3.7.3) but still not working.

Any ideas?
It's an european new 3DS btw..

Edit: Also I deleted the patched*.bin in the rei folder, so that's not the problem.

 

[alex61194]

hey how to play old flashcart of ds on sysnand 10.6 with arm9hax?

 

[Sir BLaDE]

hey how to play old flashcart of ds on sysnand 10.6 with arm9hax?

TWL_FIRM patch.

 

[FIX94]

just checked out the cleanup code and why exactly did you switch a lot of return values to u8? that just wastes some cast instructions since a int/u32 is native to the ARM processor, with a u8 it will in the asm always cut off the other 24bits of whatever register is used for reading and writing a status.

 

[peteruk]

just checked out the cleanup code and why exactly did you switch a lot of return values to u8? that just wastes some cast instructions since a int/u32 is native to the ARM processor, with a u8 it will in the asm always cut off the other 24bits of whatever register is used for reading and writing a status.

FIX94

Only asking, please don't be angry, but have you considered releasing a mod version ?

 

[FIX94]

Only asking, please don't be angry, but have you considered releasing a mod version ?

I'm personally not a fan of having a ton of different mods which are all at different development stages so I'd rather point out some things I notice so the actual people behind the "main" version can improve their program.

 

[peteruk]

I'm personally not a fan of having a ton of different mods which are all at different development stages so I'd rather point out some things I notice so the actual people behind the "main" version can improve their program.

ok thank you for replying

 

[Aurora Wright]

I'm personally not a fan of having a ton of different mods which are all at different development stages so I'd rather point out some things I notice so the actual people behind the "main" version can improve their program.

I'm not a reverser and I don't know ARM ASM, I just have (some) C knowledge.
If what you're saying is true, lots of previous code (even from ReiNand) would need to be changed. I just followed the overall style of the code.

 

[Madridi]

Sorry about the continuous releases, if no bugs are found - I tested this thoroughly - I promise this will be the last one for now
I went through the whole code and cleaned it (removed useless bits, optimized functions...) and as a result the binary is now 3 KB smaller, possibly this will also bring slight speed improvements (so the ones who have speed issues try this).
https://github.com/AuroraWright/AuReiNand/releases/tag/v3.7.3

Thanks for the update. My tests:
Emunand: I believe it's the fastest version I have tested so far. At the very least, it's on par with 3.6.1
Sysnand: Maybe a half second slower than 3.6.1 .. or the same. Don't exactly remember

The point is, whatever you did, seems to work for me

 

[Supster131]

I'm trying to boot into patched 9.X but I my screen just glitches out for a second and then I get an generic "turn off your system" error.
I'm using A9LH, with emuNand on 10.6 and sysNand on 9.2

I have the firmware.bin and the firmware90.bin in the rei folder.
Booting into emuNand works without problems, booting into sysNand via holding R works also fine, but booting the firmware90.bin via holding L doesn't boot...
Tried reinstalling AuReiNand (now on v3.7.3) but still not working.

Any ideas?
It's an european new 3DS btw..

Edit: Also I deleted the patched*.bin in the rei folder, so that's not the problem.

It's menuhax. It's conflicting.

Turn off your 3DS, then turn it back on by holding L for one second only. Once you boot into your sysNAND, change your theme.

 

[Demon0no]

It's menuhax. It's conflicting.

Turn off your 3DS, then turn it back on by holding L for one second only. Once you boot into your sysNAND, change your theme.

Damn, that was it! Just had to change the theme. Thanks alot!

 

[FIX94]

I'm not a reverser and I don't know ARM ASM, I just have (some) C knowledge.
If what you're saying is true, lots of previous code (even from ReiNand) would need to be changed. I just followed the overall style of the code.

it really does not matter in most cases since you only do simple compares which get optimized away but I just wanted to mention it, so no real need for a change.

 

[nistushin]

I couldn't get this to compile, even with the correct dev environment set up. Then I went into sdmmc.c and commented out the "#include <dirent.h>"
It compiles fine now, but I have the feeling this is not the best way to fix the issue

 

[Aurora Wright]

it really does not matter in most cases since you only do simple compares which get optimized away but I just wanted to mention it, so no real need for a change.

OK, did it anyway: https://github.com/AuroraWright/AuReiNand/commit/13fd33a61dbfde8ea53804b4e3180f98f8637abb
There were also some useless casts to u8* (from the original reinand).

 

[FIX94]

OK, did it anyway: https://github.com/AuroraWright/AuReiNand/commit/13fd33a61dbfde8ea53804b4e3180f98f8637abb
There were also some useless casts to u8* (from the original reinand).

and the file now is bigger in total, the big question now is if it is because of alignment or a difference in instructions used the gcc compiler can do some very interesting things sometimes heh.
edit: yea its a alignment difference, now some of the variables used are 4-byte aligned to be easly read by the processor, that explains it. I guess in this case there will be no speed difference but just a alignment difference.

 

[SomeGamer]

OK, did it anyway: https://github.com/AuroraWright/AuReiNand/commit/13fd33a61dbfde8ea53804b4e3180f98f8637abb
There were also some useless casts to u8* (from the original reinand).

And now you latest release is one commit behind, time for a new one?

 

[Supster131]

And now you latest release is one commit behind, time for a new one?

Compilin' time!

Edit: https://mega.nz/#!FV9SBaKB!CQasd3sicFaEmQ_t-omMzax1scuPGfdUHBwN8KGPxzY

For those people who are really impatient.

 

[tatundria]

How can I load sysNAND after rebooting from emunand on the latest version? I press L but it always loads emuNAND...

 

[WallK]

So, /installeda9lh forces use of a9lh or non-A9LH version of CFW? I'm kinda lost at explanation...