[Question] Switching to A9LH (O3DS/N3DS)

Discussion in '3DS - Flashcards & Custom Firmwares' started by jonnytron, Mar 19, 2016.

  1. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Hi guys,
    I was wondering if I could find advice on switching my ds's over to A9LH
    I have (as in my sig);

    N3DS XL (E) - sysNAND 9.2.0-20E [emuNAND ReiNAND_10.6.0-31E]
    O3DS XL (E) - sysNAND 9.2.0-20E [emuNAND RxTools_10.3.0-28E]

    Im looking to try it out on my old 3ds before my new one (the important one).
    Possible complications i can think of are that im not entirely sure of what modifications ive made to twl or agb whitelists. Or any additional issues I could have not starting from stock.

    Im aware of Plialects guide but was wondering where/ how i might get going with it on two machines that have already been messed around with quite alot... and maintain my current emuNAND with its working NNID (I imagine with a simple backup).

    Thanks guys
     


  2. Omegapsy

    Omegapsy Advanced Member

    Newcomer
    99
    22
    Feb 20, 2012
    United States
    You should not have any problems moving over to A9LH on either system if you follow the guides to a T. I woujld reccomend making backups of all four nands (Emu and sys on both) and Wiping them all out to start from a fresh window. Once the process is done, just restore your emunand(s) and use an A9LH compatible CFW to boot into it. I moved from rxTools to AuReiNand with no data loss and kept my NNID.
     
    codeluca likes this.
  3. LiquidAudacity

    LiquidAudacity GBAtemp Regular

    Member
    108
    20
    Jan 21, 2016
    United States
    As long as you take your time and back everything up you will be fine
     
  4. FenrirWolf

    FenrirWolf GBAtemp Psycho!

    Member
    4,347
    329
    Nov 19, 2008
    United States
    Sandy, UT
    Just start on stage 4 of Plailect's guide. Though you might need to do a bit of stage 3 to set up Cakes beforehand.
     
  5. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Righto, thats about what i expected.
    Whats the chance of a hard brick with the current tutorial (on O3DS and N3DS independently) ? providing i understand the process and follow it to the letter.
    ... as I dont have a hardmod.

    Thanks for your help, ill get cracking on that soon.
     
  6. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Right, my O3DS is now done and running on A9LH with a 10.7 sysNAND without any trouble.
    Now onto my N3DS (which im more nervous about and presents more confusion)

    Can someone please address each of these to settle my doubts on the plialect guide;
    1.
    Modifications to patch TWL_FIRM (the guide says this needs 'fixing' before following the guide, will formatting fix this?)
    2. I want to hold onto my current emuNAND (this isn't much of an issue, i imagine i just flash it back at the end of the process)
    3. I want to have a 9.2 and the above 10.7 system running as emu/sysNAND (but the guide scraps emuNAND and im not sure which i should have as sys and which as emu??)
    4. Should i choose to have my used 10.7 system stay as emuNAND, can i have A9LH boot into emuNAND rather than sysNAND?
    Edit 5. And what seems to be newly implemented use of RedNAND for getting OTP.bin... will I be able to reintroduce emuNAND as easily over redNAND???

    Someone please tell me how I could approach each of these.



    I would currently plan to;
    -
    backup my 10.7 emuNAND and /nintendo3ds folder for it to my computer
    - format my 9.2 sysNAND and re-set-up emuNAND at 9.2 (having double checked it was a full downgrade back in the day)
    - downgrade emuNAND to obtain OTP.bin etc...
     
    Last edited by jonnytron, Mar 30, 2016
  7. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
    1. The patched TWL_FIRM has caused the downgrade from 9.2 to 2.1 to fail but not always. Not sure if a format will "fix" it but you can probably find a "clean" one somewhere.
    2. Keep a backup of your emunand to reinject at the end, or do the entire process on a different sd card.
    3. I use AuReiNand with a 9.2 sysnand for menuhax and GW. The emunand is updated to 10.7. I like the safety net of a 9.2 sysnand.
    4. AuReiNand will boot emunand by default. This can be changed in the settings.

    I hope this helps.
     
  8. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

    Member
    GBAtemp Patron
    The Real Jdbye is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    12,107
    5,178
    Mar 17, 2010
    Norway
    Alola
    1. No, you have to reinstall the original TWL_FIRM CIA.
    2. Indeed.
    3. You can skip the parts at the end where it tells you to copy emuNAND to sysNAND and enable updatedsysnand mode, and it should boot emuNAND by default. I recommend doing this, since emuNAND is safer.
    4. See #3
    5. When I followed the guide a couple days ago, the instructions said to use emuNAND, not redNAND. In the end it shouldn't matter which one you use, as long as all the homebrew that accesses it has RedNAND support. EmuNAND has better compatibility in general.
     
  9. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Yeah that all sounds good, i guess ill look for a clean TWL_FIRM somewhere.
    On 3+4 with your system does the boot process then go A9LH > sysNAND MenuHAX > AuReiNAND > emuNAND
    or A9LH > AuReiNAND > emuNAND??? Id personally prefer the latter but mainly just interested.

    — Posts automatically merged - Please don't double post! —

    Thanks a lot, i think that about covers everything.
    Ill just have to;
    1. Find and install an original TWL_FIRM CIA
    2. Figure out RedNAND... dunno why it changed really. My only concerns for returning my emuNAND over it is how emu/RedNAND are stored differently so I worry it wont write over the redNAND properly... I enjoy that the efforts to make the guide noob friendly are just introducing confusion for me who knows... a little bit.
     
  10. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
    It goes AuReiNand > EmuNand. A9LH is just the entrypoint the payload is AuReiNand.

    Boot time to EmuNand is about 8 seconds.

    I can go AuReiNand > SysNand MenuHax > any CFW (GW, ReiNand, RxTools, etc,), but I pretty much just use it for GW which is almost never now.

    EDIT: You can do the entire process with emunand. I don't know why they switched to RedNand but they are basically the same.
     
    Last edited by Bu2d85, Mar 30, 2016
  11. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Ahh, so i could have CtrBootManager as an optional extra if i chose to put the boot process through to sysNAND. yeah that's pretty cool.
     
  12. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

    Member
    GBAtemp Patron
    The Real Jdbye is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    12,107
    5,178
    Mar 17, 2010
    Norway
    Alola
    I'm not sure why it was changed, maybe it's because RedNAND takes less space on SD and therefore is theoretically a "superior" format. There are apparently issues with it though, see: https://github.com/Plailect/Guide/issues/36
    You should be fine just using EmuNAND wherever the guide says to use RedNAND, like that page says.
     
  13. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
    Yes, but you would have to keep your sysnand at 9.2. There is also a CtrBootManager for A9LH but it only works for A9LH payloads and there are not a lot of those yet. AuReiNand has something built in that is similar to a boot manager. I recommend giving that thread a read before you install A9LH on your console.
     
  14. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Yeah, i think ill do that. From my memory of last time i did it the guide has only changed all mentions of emuNAND to RedNAND and hasn't really changed any of the steps.
    Any tips on where to find a clean TWL_FIRM while were here?
     
  15. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
    I can't give you the link but it's the ISO site where everyone gets their 3DS games.
     
  16. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

    Member
    GBAtemp Patron
    The Real Jdbye is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    12,107
    5,178
    Mar 17, 2010
    Norway
    Alola
    The best way to do that would be to find an update pack for the same firmware version/region/3DS model (or download it with 3DNUS) and copy the TWL/AGB_FIRM/DS cart whitelist cias from it. That way you're sure you get the right one for your specific firmware version/region/3DS model.

    You can find the title IDs for those titles here: http://3dbrew.org/wiki/Title_list
     
  17. richardparker

    richardparker GBAtemp Advanced Fan

    Member
    707
    113
    Oct 10, 2014
    India
    Swallowed up by the ocean!
  18. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
  19. jonnytron
    OP

    jonnytron Advanced Member

    Newcomer
    85
    8
    Dec 4, 2015
    Right i believe i've found the TWL_FIRM and AGB_FIRM;
    0004013820000102.cia and 0004013820000202.cia respectively

    having a bit of trouble with finding the DS cart whitelist but im also not entirely sure ill require it.
    Shall I just install these with devmenu/FBI then?
     
    Last edited by jonnytron, Mar 30, 2016
  20. Bu2d85

    Bu2d85 GBAtemp Advanced Fan

    Member
    GBAtemp Patron
    Bu2d85 is a Patron of GBAtemp and is helping us stay independent!

    Our Patreon
    909
    237
    Nov 6, 2014
    United States
    Yes, you will be fine just installing those.