Tutorial  Updated

Switch 7.0 Downgrade to 6.2 tutorial

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




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,

kxao

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Can someone help me? my nephew has updated my NS to version 7.0, and I do not have a previous backup of the nand, I'm following the manual downgrade process, but I did not understand how to get the hactool keys.txt. Can anyone guide me?
 

PrEtZaL

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Can someone help me? my nephew has updated my NS to version 7.0, and I do not have a previous backup of the nand, I'm following the manual downgrade process, but I did not understand how to get the hactool keys.txt. Can anyone guide me?

Just wait till 7 is supported
 

Kronos2308

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Hi i try to make a downgrade from a switch in 7.0.0 to 6.1.0 without a nand backup using choidoujur.exe but i modify my nand has the tutorial say , left intact prodinfo al replase the partition in order to make downgrade but still went i try to run AMS say key derivation failed ReiNX al well
I follow a tutorial post here
 

Masterroshi

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Hello im new. I just upgraded my switch to 7.0. I want to downgrade but i cannot export my keys. Should i just wait until 7.0 is cracked?
 

Adran_Marit

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Can someone help me? my nephew has updated my NS to version 7.0, and I do not have a previous backup of the nand, I'm following the manual downgrade process, but I did not understand how to get the hactool keys.txt. Can anyone guide me?

Google "switch masterkey 05" or wait for 7.0 support, also make a 7.0 backup of nand and boot.

Hello im new. I just upgraded my switch to 7.0. I want to downgrade but i cannot export my keys. Should i just wait until 7.0 is cracked?

Just wait
 

Masterroshi

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Google "switch masterkey 05" or wait for 7.0 support, also make a 7.0 backup of nand and boot.



Just wait
Well I tried to roll back to 6.1 with no success. I used this guide (manualchoidowngrade) and did everything up until the part where you have to dump your TSEC keys. firmware 7.0 gives me an error. (Could not identify package1 version to read TSEC firmware <= '20180802162753'>). So i just restored NAND and will wait.
 
Last edited by Masterroshi,

Masterroshi

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Well I tried to roll back to 6.1 with no success. I used this guide (manualchoidowngrade) and did everything up until the part where you have to dump your TSEC keys. firmware 7.0 gives me an error. (Could not identify package1 version to read TSEC firmware <= '20180802162753'>). So i just restored NAND and will wait.

-nevermind dumped my keys using biskey
 

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