[Help]Black Screen after DSiWare Downgrade on an A9LH already N3DS

Discussion in '3DS - Flashcards & Custom Firmwares' started by annson24, Sep 15, 2016.

  1. annson24
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    annson24 GBAtemp Advanced Fan

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    I think I bricked my 3ds, I tried doing DSiWare Downgrade on my 3DS with A9LH already installed just to test if DSiWare downgrade still works on the latest firmware of to test if all my files are correct. I can't load HG9, D9, or anything. Any suggestion?

    EDIT: I have all my backups, NANDmin, OTP, F0F1_N3DS.bin, etc.
     
    Last edited by annson24, Sep 15, 2016
  2. zoogie

    zoogie simple pimp tool

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    Yes that will 100% brick your 3ds to use dgTools on an a9lh system. You just wrote garbage to FIRM0.
     
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  3. annson24
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    annson24 GBAtemp Advanced Fan

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    crap. so what do you suggest I need to do to fix this?
     
  4. zoogie

    zoogie simple pimp tool

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    Nand mod.

    What happens when you start the system? When you hold select?
     
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  5. annson24
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    annson24 GBAtemp Advanced Fan

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    nothing, just black screen. After dumping my nand, what should I do? I have my F0F1_N3DS.bin file
     
  6. DavidRO99

    DavidRO99 Average Ryzen user.

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    your back-door
    Hardmod and write the backup
     
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  7. annson24
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    annson24 GBAtemp Advanced Fan

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    Thank you, should I write the pre-A9LH backup or the post-A9LH backup? I have both. Or it doesn't matter?
     
  8. zoogie

    zoogie simple pimp tool

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    Once you have your nand mod, take your pick. I recommend NANDmin, it's easiest.
    Then just redo a9lh. Save your otp in a safe place.
     
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  9. annson24
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    annson24 GBAtemp Advanced Fan

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    Thank you both. Now this is the best opportunity to test if I can do a hardmod. If I fail, then I just created my new paperweight haha. Will report back after doing a hardmod. Thank you.
     
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  10. annson24
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    annson24 GBAtemp Advanced Fan

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    N3ds fixed via hardmod. Writing nand tool so darn long.

    Sent from my SM-N930F using Tapatalk
     
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  11. DavidRO99

    DavidRO99 Average Ryzen user.

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    your back-door
    Good Job then!
     
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  12. wsquan171

    wsquan171 GBAtemp Regular

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    Glad to hear you fixed that. I'm still curious about why doing a downgrade via dgTools on a9lh could lead to a brick. Shouldn't the CFW protect the critical region used by a9lh?
     
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  13. DavidRO99

    DavidRO99 Average Ryzen user.

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    your back-door
    A9LH is a broken FIRM0 and that forces the 3DS to use firm1. In the firm1 there is some code that clears firm0 and writes code to it, after that it runs it. By restoring a backup that firm0 is repaired and yeah
     
  14. annson24
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    annson24 GBAtemp Advanced Fan

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    So if I were to uninstall a9lh on fw v11.1. I can now downgrade the firm without bricking?

    Sent from my SM-N930F using Tapatalk
     
  15. DavidRO99

    DavidRO99 Average Ryzen user.

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    your back-door
    Dont do it.

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

    It is pointless. It has already been confirmed to work on 11.1
     
  16. annson24
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    annson24 GBAtemp Advanced Fan

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    Actually I've already downgraded one yesterday. I just want do do it for a different reason. Anyway, I think I'll try to do a permanent hardmod hack first before doing these foolish stuff.
     
  17. Quantumcat

    Quantumcat Dead and alive

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    I'm glad we have brave people like you in the scene. If everyone was afraid of what would happen to their console if they experimented then we'd learn nothing!
     
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  18. Urbanshadow

    Urbanshadow GBAtemp Maniac

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    Step 1: working, permanent hardmod
    Step 2: unleash the bricking power
    Step 3: Restore nand, go step 2

    In other words, the sole purpose of a permanent hard mod should be to fiddle with it for the community.
     
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  19. annson24
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    annson24 GBAtemp Advanced Fan

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    Well that's the plan. :) Thanks guys for the positive comments.
     
  20. Urbanshadow

    Urbanshadow GBAtemp Maniac

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    Just dont play with the leds and you should be fine.
     
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