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

 

[Adran_Marit]

My brother updated his NS accidentally to 7.0
I have BOOT0/BOOT1 and rawnand.bin from his 6.2 backup (wasn't updated to 6.2 via ChoiDujor, I just did from 6.2 to 6.2 with ExFAT support) but "restore" folder is empty, is anything wrong?

I have researched a lot and I think I won't have any problems in just restoring, it seems very simple, I'm just in doubt if I have the correct files for this
Should I try to downgrade or wait a new CFW?

copy boot0/1 and rawnand.bin into restore folder on sd card (exfat card required) boot hekate, tools, restore boot0/1 then restore nand

 

[ridiculousroti]

Hi, is it possible to downgrade to 6.2 with someone else’s backup? If so can you walk me through the steps. Thanks.

 

[niewdack]

Hi, is it possible to downgrade to 6.2 with someone else’s backup? If so can you walk me through the steps. Thanks.

Dont do it, I did it, and i Brick my switch, All rawnand, boot0 and boot1 are console unique.

 

[Adran_Marit]

Hi, is it possible to downgrade to 6.2 with someone else’s backup? If so can you walk me through the steps. Thanks.

Dont do it, I did it, and i Brick my switch, All rawnand, boot0 and boot1 are console unique.

As Niewdack said, it can't be done. There is console unique information in the backups, just wait

 

[C0sm1c]

just wanted to provide an update, finally able to boot up my switch now and have successfully restored to 6.2 via NAND backup and up and running. thank you for all your help.

 

[leon315]

Or just be patient and wait for our BIG hackers to add 7 support?

 

[ivanhohk]

it power OFW in 6.2 or just the CFW ??

Can boot in OFW 6.2 and CFW via Hekate or SX OS by RCM. Can't boot in OFW 6.2 directly because fuse was burned when upgraded to 7.0.

 

[ivanhohk]

Hi, is it possible to downgrade to 6.2 with someone else’s backup? If so can you walk me through the steps. Thanks.

As other members said, don't use the backup not created by own, due to encrypted partition by unique key in backup.
Although you can use special method for downgrading from 7.0 to 6.2 without backup, it's complicated and high risk, not recommended to do it.

 

[Henbro11341]

copy boot0/1 and rawnand.bin into restore folder on sd card (exfat card required) boot hekate, tools, restore boot0/1 then restore nand

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.

• 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

I followed the directions I did use rawnand instead of Gpp, but got noo errors all when great until I tryed to load into cfw it shut off no Nintendo logo nothing. Then I plugged it in no charging bar nothing. I have been able to boot into Hekate but nothing other then that. Any advice

 

[Adran_Marit]

I followed the directions I did use rawnand instead of Gpp, but got noo errors all when great until I tryed to load into cfw it shut off no Nintendo logo nothing. Then I plugged it in no charging bar nothing. I have been able to boot into Hekate but nothing other then that. Any advice

did you restore boot files?

 

[Henbro11341]

yeah, both before nand

 

[Adran_Marit]

yeah, both before nand

did the versions match so 6.1 boot0/1 files and 6.1 nand?

 

[Henbro11341]

It was the 6.2

 

[Henbro11341]

I just trying to restore both boot's and raw again now when i try to load cfw i get intializing. loaded warmboot.bin and secmon now it is stuck there.

 

[Adran_Marit]

I just trying to restore both boot's and raw again now when i try to load cfw i get intializing. loaded warmboot.bin and secmon now it is stuck there.

package 2 magic error?

 

[tonyo29]

Can this be used if you backup nand using sx os.. Nand backup tools?

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

And can you still downgrade ofw to cfw even if has burn fuses

 

[Adran_Marit]

Can this be used if you backup nand using sx os.. Nand backup tools?

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

And can you still downgrade ofw to cfw even if has burn fuses

Yes you can, you might need to fix gpt partitions afterwards though

no, it will error if you try to boot ofw

 

[tonyo29]

Yes you can, you might need to fix gpt partitions afterwards though

no, it will error if you try to boot ofw

So you can only boot cfw after you downgrade the unit

 

[Adran_Marit]

So you can only boot cfw after you downgrade the unit

Correct

 

[tonyo29]

Correct

Thanks. Btw.. If you dont have the previous nand of 6.2..the only method wil be the one using the comp?