Question Can you burn fuses when updating SXOS emuNAND?

_silencer_ Nov 29, 2018.

  1. _silencer_
    OP

    _silencer_ Member

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    2
    Jan 10, 2015
    Will the below scenario result in burnt fuses?
    and
    Will this also cause my sysNAND to become inoperable given that sysNAND is on 5.1.0 and emuNAND is now on 6.1

    Switch currently on 5.1.0 ==> load SXOS and create emuNAND on microSD ==> boot into emuNAND ==>
    Scenario 1: update firmware to version 6.1 using ChoiDujourNX with autoRCM disabled
    Scenario 2: update firmware directly from Nintendo's servers (when 6.2 becomes supported)

    From my understanding the only way to burn fuses is by updating directly from Nintendo's servers, or by not having autoRCM enabled with ChoiDujourNX ... but do these rules still apply whilst in emuNAND/updating firmware in emuNAND?
     
  2. Kubas_inko

    Kubas_inko "Something funny goes here."

    Member
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    Feb 3, 2017
    Czech Republic
    I gues on earth.
    Neither of those will burn fuses.
    The only way of burning fuses is by booting through default bootloader.
     
  3. casio

    casio Newbie

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    2
    Feb 2, 2008
    Could you clarify the following based on scenario 1 please, so sysnand is on 5.1.0 and SD emuNAND is now on 6.1. Auto RCM is NOT enabled. Would booting to sysNAND through default bootloader (by mistake for example) burn fuses as if it was loading 6.1? Or will the sysNAND not take any notice of the emuNAND f/w version for fuse burning? Thanks
     
  4. Kubas_inko

    Kubas_inko "Something funny goes here."

    Member
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    Feb 3, 2017
    Czech Republic
    I gues on earth.
    No? Why would it burn fuses for something which does not exist?
     
  5. S3phi40T

    S3phi40T GBAtemp Regular

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    Dec 15, 2016
    Poland
    I have such scenario. No fuses burned.
    5.1 nand boots like a charm.

    Wysłane z mojego Redmi Note 4 przy użyciu Tapatalka
     
  6. ssssss13

    ssssss13 GBAtemp Regular

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    Aug 4, 2018
    United Kingdom
    how IS it posible? How did you update your emunand? Thought choidujour? I dont understand how dont burn fuses

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

    But without auto rcm if you turn off emunand and turn on without a payload it will burn fuses right?
    I' scared of burning more fuses than muy ofw is in. Im on 4.1 without updating emunand because i' m afraid ir a brick if a burn more than4.1 fuses(5 i think)
     
    m37r01d likes this.
  7. FabioCapela

    FabioCapela Advanced Member

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    Jul 12, 2007
    Brazil
    Because what burns fuses isn't the update, but booting to the higher FW version without CFW. And you can't ever boot into EmuNAND without CFW.

    (AFAIK, this happens because the command that burns fuses is locked down during boot, likely to eliminate the possibility of a system or game bug/crash bricking the console by wrongly issuing the burn fuse command; this means the firmware itself is actually incapable of burning fuses, only the bootloader can do it.)
     
  8. S3phi40T

    S3phi40T GBAtemp Regular

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    5
    Dec 15, 2016
    Poland
    Choidjur
    EmuNAND is not real nand so it is still 5.1 for me.
    EmuNAND is 6.1 so for Switch I'm still on 5.1.

    Wysłane z mojego Redmi Note 4 przy użyciu Tapatalka
     
    Last edited by S3phi40T, Nov 30, 2018
  9. ssssss13

    ssssss13 GBAtemp Regular

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    Aug 4, 2018
    United Kingdom
    I still dont understand if you install autorcm in choidujuour emunand what happens. Activates autorcm for all or what
     
  10. S3phi40T

    S3phi40T GBAtemp Regular

    Member
    5
    Dec 15, 2016
    Poland
    No AutoRCM.
    Normal NAND is 5.1. Period.
    EmuNAND + update with Choidjour or whatever is the proper name.
    Whatever EmuNAND is, it's different story.
    Both boot OK.
    For Switch I'm still on 5.1


    Wysłane z mojego Redmi Note 4 przy użyciu Tapatalka
     
  11. S3phi40T

    S3phi40T GBAtemp Regular

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    5
    Dec 15, 2016
    Poland
    Never tried to turn AutoRCM on during EmuNAND update.
    Thought it would be at least weird.

    Wysłane z mojego Redmi Note 4 przy użyciu Tapatalka
     
  12. ssssss13

    ssssss13 GBAtemp Regular

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    Aug 4, 2018
    United Kingdom
    Ah, so when updating thought choidujour untick the autorcm option?
     
  13. S3phi40T

    S3phi40T GBAtemp Regular

    Member
    5
    Dec 15, 2016
    Poland
    If you update EmuNAND? Yes.

    Wysłane z mojego Redmi Note 4 przy użyciu Tapatalka
     
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