Go back to complete stock from cfw and a9lh

Discussion in '3DS - Flashcards & Custom Firmwares' started by selbyftw, Sep 9, 2016.

  1. selbyftw
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    selbyftw Advanced Member

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    Is there anyway to get back to completely unmodified 3DS full stock firmware after following plailects guide?

    I'm pretty sure I made some sort of backup following the guide.

    I was on 4.5fw when I started the guide but after installing everything in the guide I updated my system firmware to the current. I'd like to go back to the stock 4.5 firmware I was on before I did all the cfw and stuff. Any ideas on a step by step tutorial to get everything back like it was out of the box?
     
  2. dimmidice

    dimmidice GBAtemp Advanced Maniac

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    I have to ask. Why do you want to do this?
     
  3. LongTimeLurker

    LongTimeLurker GBAtemp Regular

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    Simply restore the backup you made at the beginning of the guide.
     
  4. selbyftw
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    selbyftw Advanced Member

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    I messed alot of things up during the install and I've had a new sd card. My mind won't rest unless I can do the install again on a fresh system on the fresh sd.

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

    Could you post the instructions and will that take me back to 4.5fw?
     
  5. dimmidice

    dimmidice GBAtemp Advanced Maniac

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    If you got the OTP bin already (i'm assuming you do) then you don't need to do the whole installation process again btw. No need to risk another downgrade process even though its more or less foolproof now.

    edit: apparently you don't even need a OTP bin anymore.
     
    Last edited by dimmidice, Sep 10, 2016
  6. LongTimeLurker

    LongTimeLurker GBAtemp Regular

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    If you made the backup on 4.5, yes. I do have to mention though that dimmidice is correct, and you probably shouldn't do this, but if you want to, nobody can stop you :).

    Simply boot into Hourglass9 (hold a certain button on boot probably, not 100% sure as I don't have an a9lh 3ds next to me), then navigate to Sysnand Backup and Restore. You want to restore the first backup you made, before you started a9lh. Here's the relevant documentation on the options, to help you better understand what they do:

     
  7. selbyftw
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    selbyftw Advanced Member

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    Ok thanks I'm going to stick the backup of my nand I made before all this into the files9 folder on the sd card and do a restore to it, I should be back on 4.5fw then. I will do a system memory format and then start the install again. I do have some OTP files but they are only a few kbs so not sure if they are correct and or how to use them
     
  8. selbyftw
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    selbyftw Advanced Member

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    I tried doing this today but the only option is to do a nand restore with the 'keep a9lh' option. There is no other options
     
  9. Oishikatta

    Oishikatta GBAtemp Advanced Fan

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    To restore without keep a9lh you need to use decrypt9 instead of hourglass9.
     
  10. selbyftw
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    selbyftw Advanced Member

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    I've been trying to install decrypt9 but I can't seem to get it to boot into it. I've put the dcrypt.bin file into my luma/payloads folder on the sd card but it wil just boot into hourglass still and if I delete the hourglass file in the same folder it will just boot to the home menu?
     
  11. Temarile

    Temarile (ノ◕ヮ◕)ノ*:・゚✧ A9LH ✧゚・: *ヽ(◕ヮ◕ヽ)

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    Rename it to start_Decrypt9.bin. Hold start then boot your system and you're in Decrypt9.