1. Sm0k3r83

    OP Sm0k3r83 GBAtemp Regular
    Member

    Joined:
    May 16, 2018
    Messages:
    138
    Country:
    Canada
    Is there any possible way to downgrade to 6.1 if I have the NAND for that firmware?
     
  2. Hayato213

    Hayato213 GBAtemp Guru
    Member

    Joined:
    Dec 26, 2015
    Messages:
    6,715
    Country:
    United States
    Not sure if 6.2 fuse count is the same as 6.1, if it is different and you burned your fuse you can't downgrade.
     
  3. Sm0k3r83

    OP Sm0k3r83 GBAtemp Regular
    Member

    Joined:
    May 16, 2018
    Messages:
    138
    Country:
    Canada
    But as long as I boot through hekate first doesn't that bypass the fuse check?
     
    tiliarou likes this.
  4. nachuz

    nachuz GBAtemp Advanced Fan
    Member

    Joined:
    May 21, 2017
    Messages:
    551
    Country:
    Chile
    it's not
     
  5. Sora Takihawa

    Sora Takihawa Planeptunes Male CPU
    Member

    Joined:
    Oct 11, 2015
    Messages:
    2,796
    Country:
    Germany
    6.2 burnt a fuse
     
  6. palantine

    palantine GBAtemp Regular
    Member

    Joined:
    Oct 5, 2014
    Messages:
    174
    Country:
    Italy
    You can load a lower firmware using RCM hacks but you can't downgrade. You will never be able to run an OFW below 6.2.0 ever again.
     
  7. Sm0k3r83

    OP Sm0k3r83 GBAtemp Regular
    Member

    Joined:
    May 16, 2018
    Messages:
    138
    Country:
    Canada
    so if i restore my NAND using Hekate for 6.1.0 and use AutoRCM i can at least use my CFW again?
     
  8. Shift-X

    Shift-X Advanced Member
    Newcomer

    Joined:
    Nov 16, 2018
    Messages:
    70
    Country:
    United States
    Give it a try. autoRCM does bypass e-fuse check. Let us posted. Hopefully everything goes well.
     
  9. palantine

    palantine GBAtemp Regular
    Member

    Joined:
    Oct 5, 2014
    Messages:
    174
    Country:
    Italy
    I don't know the exact method to do it, but you can still run RCM hacks like reinx, hekate etc. You can try doing what you said but I can't promise 100% because I don't know.
     
  10. isoisoiso

    isoisoiso GBAtemp Regular
    Member

    Joined:
    Jun 16, 2018
    Messages:
    208
    Country:
    Spain
    If you updated and burned your fuses then no
     
  11. Adran_Marit

    Adran_Marit Walküre's Hacker
    Member

    Joined:
    Oct 3, 2015
    Messages:
    2,520
    Country:
    Australia
    Wrong.

    Yes, you will need to restore your nand backup and then boot using AutoRCM and Hekate every time. You will not be able boot it officially else the switch will panic
     
  12. bundat

    bundat ¿
    Member

    Joined:
    Jul 25, 2018
    Messages:
    438
    Country:
    Antarctica
    Last edited: Nov 20, 2018
  13. VampireOniX

    VampireOniX Advanced Member
    Newcomer

    Joined:
    Nov 20, 2018
    Messages:
    74
    Country:
    United States
    If i restore a NAND backup, is there anyway to preserve the installed NSP files? Im going to try and be the Hekate/AtmosphereNX downgrade geunie pig but i want to make sure there is a way to preserve everything i have installed to date.

    BTW, everything was installed to my SD card and not the NAND itself. I would just like to be able to still launch a game after restore without having to redownload all the NSP files again.
     
  14. thedude28

    thedude28 GBAtemp Advanced Fan
    Member

    Joined:
    Jul 28, 2015
    Messages:
    529
    Country:
    Canada
    Unfortunately for you everything is uncertain at the moment and nobody can guarantee anything.

    In theory, you should be able to keep everything; just as long as you get your switch to be at least functional.
     
  15. kronix

    kronix Newbie
    Newcomer

    Joined:
    Jul 13, 2007
    Messages:
    5
    Country:
    United States
    Well, damn. Just bought my friends switch off him, it was on 5.1. My plan was to make a NAND backup, factory reset the switch, update to 6.1, then use SX to create an emunand on my second SD card so I could keep everything separate.

    I made a boot and NAND backup, then went to factory reset the Switch, but it said it needed to unlink his account before initializing.. but then unlinking failed and said I needed to update first. I hadn't seen any news about 6.2 even existing yet, and I knew 6.1 was safe, so I updated.. and it went to 6.2...

    Would/should it be possible to restore the 5.1 NAND backup, then create the emunand from it, then somehow update the real nand back to 6.2 for my non CFW stuff?

    or am I stuck waiting at this point?
     
  16. bundat

    bundat ¿
    Member

    Joined:
    Jul 25, 2018
    Messages:
    438
    Country:
    Antarctica
    Apparently, 6.2 burns an extra fuse.

    You can restore your 5.1 backup, and boot that using a bootloader that ignores the fuse check i.e. Hekate/SX OS.

    BUT:
    So you can't use sleep mode when using CFW, until they crack 6.2
     
    Agusto101 likes this.
  17. kronix

    kronix Newbie
    Newcomer

    Joined:
    Jul 13, 2007
    Messages:
    5
    Country:
    United States

    Yeah, I had already read about the limitations, that I could go back to 5.1 but be stuck using CFW. So I know I can restore my 5.1, then use SXOS. At that point I should be able to create an EMUNAND with 5.1 on it and still use CFW.

    BUT a few people on reddit are confirming that if your EMUNAND is 6.1 or lower it'll still work fine even if your main NAND is on 6.2, so you can still use 6.2 and CFW if you have an older EMUNAND.

    Would there be a way for me to get the main NAND back to 6.2 after creating my 5.1 EMUNAND?
     
    Agusto101 likes this.
  18. Agusto101

    Agusto101 GBAtemp Regular
    Member

    Joined:
    Jul 9, 2018
    Messages:
    199
    Country:
    Guatemala
    I recomend wait a few days..for the patch of 6.2 , to avoid all of this stuff but if you like then do it , i really dont see the point, whatever.
     
  19. VampireOniX

    VampireOniX Advanced Member
    Newcomer

    Joined:
    Nov 20, 2018
    Messages:
    74
    Country:
    United States
    For anyone who is wondering and has questions... I am backing up my 6.2 switch right now. When thats done i will restore my 6.1 and post my results.

    Will I keep my installed NSPs? Will it still boot with Hekate? Will sleep mode work (probably not)? I will post my results very soon.
     
    kronix likes this.
  20. VampireOniX

    VampireOniX Advanced Member
    Newcomer

    Joined:
    Nov 20, 2018
    Messages:
    74
    Country:
    United States
    After multiple attempts, it will not let me rewrite anything at all. I keep getting an error 4 while opening backup error. Anyone know anything on how to fix this? I've tried 4 different SD cards, all with fat32 and exfat tries. I tried extracting and restoring individual partitions... Seems like nothing is working.

    Does this maybe have to do with the new changes to the key generation? Maybe the key changes are preventing the opening? Any help would be awesome. If anyone has already played guiene pig before me, advice is welcomed, otherwise i still dont mind trying to explore a land mind.
     
Draft saved Draft deleted
Loading...

Hide similar threads Similar threads with keywords - downgrade, Anyway, Backup