Update: Since Atmosphere has released with 7.0.X support, To downgrade without a backup, just use ChoidujourNX.
For those with backups you can still follow the method below

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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

 

[Dev_]

hey, thanks for the donwgrade tutorial, i succesfully downgraded hte switch to 6.2 , i had only resotred the boot0/1 and system partion (i dont have bkp for user partion ) the switch booted fine into cfw but when the consol goes into sleep mod im stuck there i tried to use hekate (copied the bootloader folder and injected the hekate payload added cfw payload too in bootloader/payload ...) but i think im missing somthing ... any idea ?
thanks in advance ^^!

 

[Adran_Marit]

hey, thanks for the donwgrade tutorial, i succesfully downgraded hte switch to 6.2 , i had only resotred the boot0/1 and system partion (i dont have bkp for user partion ) the switch booted fine into cfw but when the consol goes into sleep mod im stuck there i tried to use hekate (copied the bootloader folder and injected the hekate payload added cfw payload too in bootloader/payload ...) but i think im missing somthing ... any idea ?
thanks in advance ^^!

Use latest hekate, if using reinx make sure reinx is the latest payload (if chaninloading through hekate update that) make sure it isn't on the sd root.

Same with atmo

 

[Dev_]

Use latest hekate, if using reinx make sure reinx is the latest payload (if chaninloading through hekate update that) make sure it isn't on the sd root.

Same with atmo

thanks for the fast replay, im using the last hekate i guess (the 4.6 right ? ), otherwise im not really understanding you well ... but here's what i did / use
cfw atmo 0.8.1
hekate 4.6
atmo payload in sd:/bootloader/payload/fuse-primary.bin

 

[Adran_Marit]

thanks for the fast replay, im using the last hekate i guess (the 4.6 right ? ), otherwise im not really understanding you well ... but here's what i did / use
cfw atmo 0.8.1
hekate 4.6
atmo payload in sd:/bootloader/payload/fuse-primary.bin

okay, hekate 4.6 is the latest, what you need to do is update the fusee-primary.bin in that location and the fusee secondary on the root of your sd card

if that doesn't work, try kosmos

 

[Dev_]

okay, hekate 4.6 is the latest, what you need to do is update the fusee-primary.bin in that location and the fusee secondary on the root of your sd card

if that doesn't work, try kosmos

the fuse secondary already on the root but ill give a try with kosmos tomorrow morning and keep you informed with the result.
thanks men for the help ! and have a nice day ^^!

 

[Adran_Marit]

the fuse secondary already on the root but ill give a try with kosmos tomorrow morning and keep you informed with the result.
thanks men for the help ! and have a nice day ^^!

no worries

again don't forget to update fusee-primary first

 

[Dev_]

no worries

again don't forget to update fusee-primary first

i will ^o^!

 

[lpfans93]

About the downgrade whit no NAND backup ?
https://guide.sdsetup.com/#/manualchoidowngrade

 

[Adran_Marit]

About the downgrade whit no NAND backup ?
https://guide.sdsetup.com/#/manualchoidowngrade

Yes but it's not recommended

 

[shenholy]

how long does a cfw normally take?

 

[Adran_Marit]

how long does a cfw normally take?

how long does it normally take to what?

run? Install a game? Be updated?

You need to be a little more specific lol

 

[SaUzEr]

Yes but it's not recommended

Hi,

what is the exact reason for not recommending it?

Possible brick? Possible ban if used connected to net?

No possibility to go back to official horizon once downgraded?

thanks
SaUzEr

--------------------- MERGED ---------------------------

sorry but why all this noise if 7.0.0 is open?
PK11: 434FA7D07A8D4FDFD8630AC40FF9BC697E0DE40E0041E225F154BEB9571044E9
Master key: 4EC96B8CB01B8DCE382149443430B2B6EBCB2983348AFA04A25E53609DABEDF6
does anyone confirm?

I was wondering the same...

 

[Adran_Marit]

Hi,

what is the exact reason for not recommending it?

Possible brick? Possible ban if used connected to net?

No possibility to go back to official horizon once downgraded?

thanks
SaUzEr

--------------------- MERGED ---------------------------



I was wondering the same...

It is complex with a high chance of bricking (possibly permanent) if you do it wrong. running CFW triggers a ban flag if you aren't careful, even if you revert to stock, the ban flag is still there


those are just the hashes, not the actual key, we can't do anything with the hash

 

[SaUzEr]

It is complex with a high chance of bricking (possibly permanent) if you do it wrong. running CFW triggers a ban flag if you aren't careful, even if you revert to stock, the ban flag is still there

Got it, thanks for your prompt answer.

those are just the hashes, not the actual key, we can't do anything with the hash

Yeah, I just realized a sec after posting

 

[PrEtZaL]

Downgrading using choidujour from 7 to 6.1 works fine, there's no reason not to do it. Using a nand backup instead is easier sure. But choidujour isn't complicated. Rajkosto updated biskeydump now for v7.
I restored from 7 to 6.1 with no issues as I was curious then updated to 6.2 again with choidujournx.

Still a lot of people out there using cfw without a clue how the switch works on a fundamental level.

Of course you can restore a nand, if you're in RCM.

 

[Adran_Marit]

Downgrading using choidujour from 7 to 6.1 works fine, there's no reason not to do it. Using a nand backup instead is easier sure. But choidujour isn't complicated the only issue you will have doing it this way is if you've not already obtained your BISKEYS.

I restored from 7 to 6.1 with no issues as I was curious then updated to 6.2 again with choidujournx.

Still a lot of people out there using cfw without a clue how the switch works on a fundamental level.

Of course you can restore a nand, if you're in RCM.

You see compare choidujour to placing files on sd card and pressing a few button on the switch once you've launched hekate, in comparison it's complicated

The only issue is if you don't have your biskeys. Wrong, flat out wrong, people skim over stuff and follow it without direction, they do this with the text guides same with video guides, that's why so many consoles ended up bricked, even when show what to do.

It is possible to downgrade without first having your biskeys (I know cause I've done it) it's even more complicated than simply downgrading

you are overestimating people, ergo why it's suggested to restore with a full nand backup or just wait for 7.0 support

 

[PrEtZaL]

You see compare choidujour to placing files on sd card and pressing a few button on the switch once you've launched hekate, in comparison it's complicated

The only issue is if you don't have your biskeys. Wrong, flat out wrong, people skim over stuff and follow it without direction, they do this with the text guides same with video guides, that's why so many consoles ended up bricked, even when show what to do.

It is possible to downgrade without first having your biskeys (I know cause I've done it) it's even more complicated than simply downgrading

you are overestimating people, ergo why it's suggested to restore with a full nand backup or just wait for 7.0 support

How would you mount your partitions and write to them without BISKEYS?

 

[Adran_Marit]

How would you mount your partitions and write to them without BISKEYS?

back before biskeydump was updated you could do boot0/1 which allowed you to boot far enough to get biskeys then continue with the other steps

 

[PrEtZaL]

back before biskeydump was updated you could do boot0/1 which allowed you to boot far enough to get biskeys then continue with the other steps

Okay that makes sense. Would using etcher be enough? Or would you need a boot0/1 restore?

 

[shenholy]

how long does a cfw normally take?

for a cfw update. i read like 1-2 weeks for 7.0?