Homebrew ARM9Loader -- Technical Details and Discussion

[Yudowat]

N2DS XL now with 100% less pocket fitting action

N2DS XL, Double the hard to reach trigger buttons!

 

[DQScott95]

@Yudowat ...I gave you an internet

 

[RednaxelaNnamtra]

@dark_samus3 what do you think about adding something like an arm11 api to the a9lh arm11 pyload? A payload which allows setting the brightnes, disable the screen, and maybe allows to configure possible other arm11 hardware(if there is any more). Something like write from arm9 to this address, to do this. If have a very hackie implementation of it in my dev-build with brightness configuation for different payloads, but I don't know what the best address is, to place it there.

 

[naivegirl2411]

I have linked nands and want to follow the otp guide to get my otp, whats steps should I change from Plailect's guide to ensure I get my otp without messing up my 3ds? I am using an o3ds on 9.2 sysnand and emunand. The guide also doesnt state anything about how to upgrade your 3ds to the latest fw, is it ok to use sysnand's system settings to update 3ds now if youve removed emunand? I dont know how updating arm9lh or updating fw with arm9lh works

Im using this otp guide: https://github.com/Plailect/Guide/wiki

 

[Supster131]

I have linked nands and want to follow the otp guide to get my otp, whats steps should I change from Plailect's guide to ensure I get my otp without messing up my 3ds? I am using an o3ds on 9.2 sysnand and emunand. The guide also doesnt state anything about how to upgrade your 3ds to the latest fw, is it ok to use sysnand's system settings to update 3ds now if youve removed emunand? I dont know how updating arm9lh or updating fw with arm9lh works

Im using this otp guide: https://github.com/Plailect/Guide/wiki

If you already have A9LH, you can update your sysNAND.

If you do not have A9LH, DO NOT UPDATE YOUR SYSNAND.

What would I change personally in the guide? The use of AuReiNAND instead of Cakes, more user friendly, and I've seen more issues pop up when people are using Cakes.

 

[naivegirl2411]

If you already have A9LH, you can update your sysNAND.

If you do not have A9LH, DO NOT UPDATE YOUR SYSNAND.

What would I change personally in the guide? The use of AuReiNAND instead of Cakes, more user friendly, and I've seen more issues pop up when people are using Cakes.

With regard to cakes vs aureinand Id like to know how relevant this point is in the guide:

Part 5:
36. Activate the "Block FIRM partition updates", "Disable Signature Checks", and "Survive reboots when launching some titles" (that last one is Old 3DS only and you only need it if you have Smash 4 or MH4; it will not be there for all devices) patches, then press Start to continue
(MAKE SURE YOU SELECT THE BLOCK FIRM PARTITION UPDATES PATCH OR THE NEXT SYSTEM UPDATE WILL BRICK YOU)

Is this strictly cakes fw related or should i just look over it if i choose aureinand?

 

[Supster131]

With regard to cakes vs aureinand Id like to know how relevant this point is in the guide:

Part 5:
36. Activate the "Block FIRM partition updates", "Disable Signature Checks", and "Survive reboots when launching some titles" (that last one is Old 3DS only and you only need it if you have Smash 4 or MH4; it will not be there for all devices) patches, then press Start to continue
(MAKE SURE YOU SELECT THE BLOCK FIRM PARTITION UPDATES PATCH OR THE NEXT SYSTEM UPDATE WILL BRICK YOU)

Is this strictly cakes fw related or should i just look over it if i choose aureinand?

AureiNAND blocks FIRM automatically, so no need to worry about it.

 

[Lumince]

AureiNAND blocks FIRM automatically, so no need to worry about it.

Does Reinand block FIRM? or should I move to AuReinand? Because last time i used AuReinand (I messed up some how) and my emunand didnt want to boot up.

 

[Supster131]

Does Reinand block FIRM? or should I move to AuReinand? Because last time i used AuReinand (I messed up some how) and my emunand didnt want to boot up.

afaik ReiNAND does not block FIRM, since Rei mainly wants to stick with emuNAND.

If you're on A9LH, then yeah, definitely move over to AuReiNAND.

 

[Lumince]

afaik ReiNAND does not block FIRM, since Rei mainly wants to stick with emuNAND.

If you're on A9LH, then yeah, definitely move over to AuReiNAND.

I am on a9hl but I am staying on emunand until sysnand actually seems safer. People seem to be screwing up swaping their nands and Id rather not attempt it. Since Im on emunand does that make the FIRMs safe? Or should I move to Au anyways?

 

[Supster131]

I am on a9hl but I am staying on emunand until sysnand actually seems safer. People seem to be screwing up swaping their nands and Id rather not attempt it. Since Im on emunand does that make the FIRMs safe? Or should I move to Au anyways?

If you're only on emuNAND, I don't think it'd really matter.

AuReiNAND can boot directly into Decrypt9, which is pretty cool. But if you don't care about that, then stick with ReiNAND for now.

 

[Lumince]

If you're only on emuNAND, I don't think it'd really matter.

AuReiNAND can boot directly into Decrypt9, which is pretty cool. But if you don't care about that, then stick with ReiNAND for now.

Will do!

 

[Plailect]

Guide has been updated to include options to use either AuReiNAND or CakesFW, so hopefully this will stop the arguing over which is best, just use the one that suits you.

 

[democracy]

If you're only on emuNAND, I don't think it'd really matter.

AuReiNAND can boot directly into Decrypt9, which is pretty cool. But if you don't care about that, then stick with ReiNAND for now.

Yes I too would like to know if firm 0 and firm 1 are blocked without setting an updatedsys nand flag. I have asked in the AuReiNand forum but no clear response. Kindly let me no if you get an answer to this.

Anyways, because it is unknown, I will be using a older version of aureinand when it comes time to update arm9 via 3dsx. I wonder if thats whe that guy bricked his n3ds a few pages back, because he tried to update when firm0 and firm1 was blocked.

 

[Supster131]

Yes I too would like to know if firm 0 and firm 1 are blocked without setting an updatedsys nand flag. I have asked in the AuReiNand forum but no clear response. Kindly let me no if you get an answer to this.

Anyways, because it is unknown, I will be using a older version of aureinand when it comes time to update arm9 via 3dsx. I wonder if thats whe that guy bricked his n3ds a few pages back, because he tried to update when firm0 and firm1 was blocked.

Yes, AuReiNAND blocks FIRM0/FIRM1 even without the updatedsysnand flag.

Aurora stated that in one of her posts in the AuReiNAND thread.
I recommend to use the latest version of AuReiNAND btw.

 

[FenrirWolf]

updatedsysnand flag has nothing to do with whether FIRM writes are blocked or not. It just determines whether sysnand autoboots or whether emunand autoboots.

The FIRM writes blocking patch is applied automatically, but you can force the behavior to always be true with the installeda9lh flag.

 

[Devastus]

So I have arm9 and AuRei all setup (10.6.xU emuNAND, 9.2.xU sysNAND) but now I can't access Decrypt9WIP, emuNAND9, and OTPHelper from homebrew menu on both sysNAND and emuNAND. Can anybody tell me why I can't? I get the double red screen flash after launching the apps and it goes back into homebrew menu.

 

[Supster131]

So I have arm9 and AuRei all setup (10.6.xU emuNAND, 9.2.xU sysNAND) but now I can't access Decrypt9WIP, emuNAND9, and OTPHelper from homebrew menu on both sysNAND and emuNAND. Can anybody tell me why I can't? I get the double red screen flash after launching the apps and it goes back into homebrew menu.

Do you have the firmware90.bin in your /rei/ folder?

Also, make sure to boot with L, not with R.

 

[Devastus]

Do you have the firmware90.bin in your /rei/ folder?

Also, make sure to boot with L, not with R.

Nah I don't have firmware90.bin, only firmware.bin. Booting with 'L' just leaves my N3ds in a almost "brick" like state (for lack of better term) where just the blue light is on and nothing boots.

EDIT: I was under the impression I wouldn't need the a9LH firmware90.bin, should I be using it? Do firmware.bin and firmware90.bin play nice when they are both in the folder together?

 

[Serphirot]

Nah I don't have firmware90.bin, only firmware.bin. Booting with 'L' just leaves my N3ds in a almost "brick" like state (for lack of better term) where just the blue light is on and nothing boots.

EDIT: I was under the impression I wouldn't need the a9LH firmware90.bin, should I be using it? Do firmware.bin and firmware90.bin play nice when they are both in the folder together?

Well that is because L trys to boot with firmware90.bin which you don´t have so it can´t boot. And for Homebrew you need the frim 9.x to use them.