Dead eMMC swapped for a new one, but...

Discussion in 'Switch - Console, Accessories & Hardware' started by chankarik, Apr 18, 2019.

  1. chankarik
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    chankarik Advanced Member

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    The backup which I have restored is on 6.2. What can be done?
     
  2. Adran_Marit

    Adran_Marit Walküre's Hacker

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    manual choi downgrade
     
  3. chankarik
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    chankarik Advanced Member

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    So I downgrade it to 6.1, then flash everything new? (boot partitions?). I'm a total noob for those tools, but I have learned much since this all started back in early March.

    BTW, my Switch has 9 burnt fuses, it seems.
     
    Last edited by chankarik, Apr 19, 2019
  4. Onlyd

    Onlyd Advanced Member

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    You gotta follow the guide to the t, I had to reformat my sd card to make sure the modded hekate loaded. Check the ver number.
     

    Attached Files:

  5. chankarik
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    chankarik Advanced Member

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    I'm not sure I follow.

    I mean, I can't boot on cfw or ofw because my boot partitions seem to be corrupted. I don't have a backup of them, only the regular 6.2 32 GB rawdump.bin file, which I have restored to the emmc (yeah, I know I lost a chunk of memory space but I've learned I can deal with it later).

    Now, I can't restore the boot 0 and 1 partitions, nor dump biskeys nor fix the gpts.

    Edit: Mind you, the ofw had been updated to 7.0.0 like three weeks before my emmc went kaput. Yeah, accidentally, and I deeply regret letting it happen.

    Would that mean I have fuses burnt up to 7.0.0? Would that affect choidujour and the restored 6.2 nand anyhow?
     
    Last edited by chankarik, Apr 19, 2019
  6. Onlyd

    Onlyd Advanced Member

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    You don’t have an dumped biskey from running any cfw on your sd card? And you might have some luck reflowing the ic back to the pbc to get the dumps you need. But doing that yourself has a lot of up front cost and which is why my fiancée hates my reflow station. But you could even have luck dead bugging the ic back to the pcb to get your dumps. Sure sounds like a project to me
     
  7. Canna

    Canna Bad Ass Poisonous Mushroom

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  8. chankarik
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    chankarik Advanced Member

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    Lockpick_RCM shows me the message: Unknown pkg1 version.

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

    Also, when trying to get my TSEC keys on Hekate, it shows me this:

    Unknown package1 version or reading
    TSEC firmware <=´20161208142800´>.

    Now, I have used another payload (biskeys) previously, which has shown me my TSEC key. Can I simply copy that key and save it as a file that would be created i Lockpick worked for me?
     
    Last edited by chankarik, Apr 19, 2019
  9. The Real Jdbye

    The Real Jdbye Always Remember 30/07/08

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    Alola
    Actually yes, kind of. There were some blank boot0/boot1 dumps posted that have the personal info (at the end) removed so you can add your own. But ChoiDujour (non NX) will generate it for you so using someone elses isn't really needed, it just saves one step.
    You wouldn't be able to boot 6.2 OFW with 7.0 fuses (IIRC 6.2 and 7.0 have different fuse counts), but you would at least be able to boot CFW through RCM.
    I think so. The TSEC key IIRC is just a single key that's hardcoded to the console and doesn't change.

    Anyway, good luck, hope you can get your console repaired. If I knew someone who's a guru at this, I would refer you to them, but I'm afraid not many people have experimented with upgrading their NAND, and people already linked the relevant thread(s).
    Rest assured that what you're trying to do is possible though. It might be a bit of an ordeal, but some people have done it successfully.
     
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  10. chankarik
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    chankarik Advanced Member

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    Thanks everyone once again. Here's an update.

    Due to the help of a certain guardian angel, I now have all my BISKeys, TSEC and SBK, was able to Choi my way into 6.1.0...but atmosphere or any other CFW won't boot.

    It now fails to decrypt pkg2. It's puzzling, because we have double-checked everything when flashing the fw to pkg2, but still...

    Rebuilding the nand is going to be the next step and attempt.

    Any ideas or suggestions?
     
  11. mrdude

    mrdude GBAtemp Advanced Fan

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    If you have 9 burned fuses, you need to install 7.xx firmware instead of 6.1.0.
     
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  12. blahblah

    blahblah GBAtemp Maniac

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    Not if the user is booting with Hekate/Fusse/etc. And you can't Choi (on PC) directly to 7.xx. Choi maxes out at 6.1.0. ChoiNX is needed for newer, which the OP cannot use at the moment, since they can't boot into Horizon.
     
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  13. Adran_Marit

    Adran_Marit Walküre's Hacker

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    rebuild the whole nand using choidujour and try again. make sure all the sizes match for boot0/1. Also if you got a bigger nand you need to do some other stuff as well
     
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  14. Onlyd

    Onlyd Advanced Member

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    it took me 2 times to get choidujour to rebuild my nand correctly when i went from 7.0 to 6.1. the bigger nand part wasn't difficult just gotta make sure you put sudo before any linux terminal commands if its giving you an error. when you do get it working i might suggest a internal payloader mod rcmx86, i like using them so even if you do have todo a hard reboot youll always get loaded in through a hekate payload and never have to worry about burned fuses or the ofw wigging out on your new nand.
     
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