Switch 7.0 Downgrade to 6.2 tutorial

Discussion in 'Switch - Tutorials' started by Adran_Marit, Jan 30, 2019.

  1. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    After seeing reports of downgrading back to 6.2 been broken after updating to switch firmware version 7.0, I can confirm these to be false. I successfully downgraded my switch with 9 burnt fuses on 7.0 to 6.2 with 9 burnt fuses

    Downgrading to 6.2 is possible and not broken. Both boot0/boot1 must be the same version as nand backup

    • Step 1) Place 6.2 nand + boot0/1 backup on sd card
    • Step 2) Boot into RCM and launch hekate
    • Step 3) Restore boot 0/1
    • Step 4) Restore GPP Partitions (or rawnand, I personally used GPP Partitions)
    • Step 5) Launch CFW using Hekate 4.6 or ReiNX 2.0 or sxos (haven't tested with fusee-primary)
    • Step 6) ????
    • Step 7) Profit

    EDIT: This is for FG consoles not ipatched
    EDIT 2: You will loose any saves you don't have backed up


    Will upload proof if people desperately wish
     
    Last edited by Adran_Marit, Feb 14, 2019 at 1:11 AM
  2. Jellykrop

    Jellykrop Member

    Newcomer
    1
    Dec 28, 2015
    United States
    Interesting to know that it can be done. Thanks for the info.
     
    Adran_Marit likes this.
  3. Phenj

    Phenj GBAtemp Fan

    Member
    5
    May 22, 2018
    Italy
    Thanks for the debuking
     
    bomigoton and Adran_Marit like this.
  4. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    I should note this is for FG consoles not ipatched
     
  5. Jellykrop

    Jellykrop Member

    Newcomer
    1
    Dec 28, 2015
    United States
    Mine is unpatched and on 6.2, not planning to update anytime soon.
     
  6. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    Probably for the best :) Also if you don't have a backup I suggest doing one
     
    Jellykrop likes this.
  7. Jellykrop

    Jellykrop Member

    Newcomer
    1
    Dec 28, 2015
    United States
    I do have a backup that I made when as was on 4.1, but I was wondering, if one day I would like to downgrade back to 4.1, could I use my backup as it was made before autoRCM was enabled? I would assume it would boot straight to OFW and possibly cause problems?
     
  8. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    yeah it won't boot if the fusecount is mismatched, like if the fuses are lower it's fine but if its higher you would need to boot using hekate stock then upgrade officially
     
  9. Jellykrop

    Jellykrop Member

    Newcomer
    1
    Dec 28, 2015
    United States
    No fuses were burnt since I updated using ChoiDuJour ^_^
     
    Adran_Marit likes this.
  10. Zumoly

    Zumoly GBATemp Analyst

    Member
    6
    Apr 27, 2018
    Mali
    Yorosso
    I'm pretty much sure those who claim they are bricked have not the full NAND backup i.e the Boot0/1 files.
     
  11. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    yea, They can be repopulated but it's a bit harder to do, I did it when 6.2 dropped
     
  12. tidusboy21

    tidusboy21 Newbie

    Newcomer
    2
    Aug 17, 2008
    i'm trying to restore my backup (FW 6.1.0) from 7.0 by using SX OS and after that i will try to boot into CFW and installing FW 6.1.0 that i downloaded from internet Source. If it work i will let everyone know.
     
  13. linuxares

    linuxares I'm not a generous god!

    Moderator
    14
    Aug 5, 2007
    Sweden
    Can people STOP updating to 7.0 and wait for CFW instead?
     
  14. Cava

    Cava GBAtemp Advanced Fan

    Member
    5
    Jan 26, 2016
    Hungary
    Why is this such a big problem? Emunand still works right? Ohh sorry... no SXOS users here? :)
     
  15. Hayato213

    Hayato213 GBAtemp Psycho!

    Member
    8
    Dec 26, 2015
    United States
    Well fuse count would be mismatched, he wouldn't be able to boot into OFW, reason it work because he is booting into CFW like Rei NX.
     
  16. markiemark

    markiemark Newbie

    Newcomer
    1
    Jan 30, 2019
    United Kingdom
    I updated my Switch in error yesterday, it was forced with a Digital game update and I just started with CFW.

    Had a full NAND backup with SX OS at 6.2 and restored but unable to boot now, any advice for a newbie on how to resolve please ?
     
  17. Cardo360

    Cardo360 Newbie

    Newcomer
    1
    Jan 30, 2019
    United States
    I have just tried this process and now I cannot boot into RCM, restored both Full NAND and Boot 0/1 6.2. My switch will not turn on to OFW or RCM to launch Hekate 4.6. Any suggestions?

    UPDATE: The tablet was actually on and didn't realized it since it now shows a blank screen on OFW, held power button for about 15 seconds and tried RCM again and it worked, all good here!
     
    Last edited by Cardo360, Jan 30, 2019
  18. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    Try using hekate to chainboot sxos if you can still get into RCM


    Glad you got it sorted :)

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

    Yeah it's a rule but newbies to the scene might not know. Don't update until new cfw is out people

    I updated for testing purposes of downgrading and other reasons :P
     
    linuxares likes this.
  19. TheBloodstomper

    TheBloodstomper Newbie

    Newcomer
    1
    Jan 29, 2019
    Belgium
    Is there a way to download the backup os someone else? A friend of mine updated the swith by mistake...
     
  20. Adran_Marit
    OP

    Adran_Marit Walküre's Hacker

    Member
    7
    Oct 3, 2015
    Australia
    42*South
    Just commented on the post
     
Loading...
Dạ YếnThe Banquet Full HD | Les Gardiens de la Galaxie | Watch Now