Downgraded to 1.0, now can't boot

Discussion in 'Switch - Exploits, Custom Firmwares & Soft Mods' started by w00dey, Oct 13, 2018.

  1. w00dey
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    w00dey Newbie

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    Oct 13, 2018
    Hungary
    Hi guys!

    I saw that in theory if you use a CFW which disables fuses, you can use any firmware you want. To test it out I installed 1.0 via ChoiDujourNX, and since that I can't boot my switch. RCM works, but I tried to boot from SX OS and ReiNX, both of them didn't work. I tried booting from OW, but it gives me an error message 2002-4315 error message probably because of the fuses. I installed the non-exfat version of the FW previously I used the exfat versions and I have my SD card formatted to exfat if that matters.
    Is there any way to get the 1.0 to boot or to roll back to 6.0.1 or 5.1.0? I also don't have any backups unfortunately.
    Thanks for your help in advance!
     
  2. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    Alola
    Always, ALWAYS make a NAND backup when messing with NAND. That shouldn't even need to be said.
    But I think you can use ChoiDujourNX to update it.
     
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  3. w00dey
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    w00dey Newbie

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    Oct 13, 2018
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    How? To use ChoiDujourNX, I have to boot the homebrew menu. Now I can only go into RCM
     
  4. a9lh-1user

    a9lh-1user Newbie

    AFAIK the 1.0.0 files are not working. So you can't get back to that version.

    Original from rajkosto:
    • Extract the UPDATE partition from an XCI image of the cartridge that contains the update you want into a folder
    These are common cartridges and firmware versions they contain:
    Puyo Puyo Tetris/ 1-2 Switch (1.0.0) - would never recommend installing this one as no Switch made with 1.0.0 actually runs it (its a slightly different 1.0.0 with exFAT that bricks you)

    Anyway you can ask him to try to put you into the right direction. (He is very helpfull!)
     
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  5. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    Last edited by The Real Jdbye, Oct 13, 2018
    NoNAND, Quantumcat and Skonikol like this.
  6. w00dey
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    w00dey Newbie

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    Oct 13, 2018
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    Thanks for your help guys, so far I managed to dump my SBK and TSEC keys and I dumped the BOOT0 and BCPKG2-1-Normal-Main files from my switch in order to dump the keys. However when I launch the python script it fails with an error message: Could not find sd_card_kek_source! Please check the integrity of the data used in the current stage!
    What should I do now?
     
  7. a9lh-1user

    a9lh-1user Newbie

    I'am sure you do your best.....but i think you should contact @rajkosto because he is the writer of the tools. And he can tell you what to do before you got into worst trouble!
     
    NoNAND likes this.
  8. w00dey
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    w00dey Newbie

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    Oct 13, 2018
    Hungary
    Okay, I tried to post in that tutorial thread, I hope he'll answer me, thanks!
     
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