Downgrading Switch Sysnand OFW back to 10.2.0 from 13.1.0

[carnbyds]

I want to run back SXOS on my mariko switch.
Currently im using atmosphere 1.2.1 and Atmosphere 13.1.0. My device OFW is on 13.1.0.
How do i roll back OFW of the switch back to 10.2.0. or if i have my backup of SXOS on 10.2.0 ,can i just copy all that into the sd card and run that?

I have attached the pic of my sxos backups

By the way, i have a backup of my SXOS files on my HDD with FW10.2.0 on the emutendo folder.

Please help. Thank You.

 

[shanefromoz]

I dont think you can as if on OFW the fuses would have burnt.
If you downgrade there will be a fuse mismatch.

 

[carnbyds]

if use back the backup of my SX OS , will it load since it has emutendo with 10.2.0 in it

 

[carnbyds]

I dont think you can as if on OFW the fuses would have burnt.
If you downgrade there will be a fuse mismatch.

so i we have updated OFW of the switch , then we cannot load SX emunand as well?

 

[shanefromoz]

so i we have updated OFW of the switch , then we cannot load SX emunand as well?

Is your emunand on 10.2.0?

 

[RHOPKINS13]

Is your sysnand banned or something? I don't know why you would downgrade sysnand. The burnt fuses will make it refuse to boot unless you're using CFW. You can boot a 10.2 emuMMC regardless of what firmware sysnand is on. Note that you'll have to take out any cartridge in the game slot, because otherwise it will crash. But aside from that, everything else should work fine, and it will be much less risky than downgrading sysnand.

 

[carnbyds]

Is your emunand on 10.2.0?

yes, but i think i cannot use the emunand since im on version 2 switch and my OFW is now on 13.1.0

 

[kidkat210]

yes, but i think i cannot use the emunand since im on version 2 switch and my OFW is now on 13.1.0

Every hacked switch can make an emmunand. Also firmware is irrelevant.

1) make sure you have space on your sd, highly recommended to use a 256 or higher

2) Boot hekate, format another partition

3) make emunand in hekate

4) download the firmware you wanna downgrade to, extract it into a folder and place on your sd

5) boot atmosphere in emunand, use daybreak to "update" your firmware to whatever you choose.

6) use sx os in that emunand.

Done, now as how to properly dual boot. Im not sure since I haven't looked at tutorials but there are tons from the passing glances in various places

 

[carnbyds]

Every hacked switch can make an emmunand. Also firmware is irrelevant.

1) make sure you have space on your sd, highly recommended to use a 256 or higher

2) Boot hekate, format another partition

3) make emunand in hekate

4) download the firmware you wanna downgrade to, extract it into a folder and place on your sd

5) boot atmosphere in emunand, use daybreak to "update" your firmware to whatever you choose.

6) use sx os in that emunand.

Done, now as how to properly dual boot. Im not sure since I haven't looked at tutorials but there are tons from the passing glances in various places

I dont think you are well informed. The SX Core chip cannot load SXOS on V2 if the switch is updated to OFW more than 11.0.0.
It gets me irritated when people give info like as if they have done it before. your method only works for Switch V1.
I have also restored my sd file emutendo of teh SXOS i backed up before migrating to atmosphere. It does not boot pass the SX boot logo, and gives a blank black screen.

 

[kidkat210]

Yes I know sx doesn't work past 11.0 (technically 11.0.1 if you find the Frankenstein build of 3.1 beta)
What I'm saying if make a emunand in 13.1, then downgrading the firmware to 11.0 or 10.2 or whatever you want it to be. Then sx os will be compatible with that emunand
Ask @mikefor20. They made a tutorial on how to dual boot atmosphere and sxos. The concept is the same of the steps
https://gbatemp.net/threads/how-to-...en-partitions-on-the-same-sd-tutorial.601607/

 

[Draxzelex]

I want to run back SXOS on my mariko switch.
Currently im using atmosphere 1.2.1 and Atmosphere 13.1.0. My device OFW is on 13.1.0.
How do i roll back OFW of the switch back to 10.2.0. or if i have my backup of SXOS on 10.2.0 ,can i just copy all that into the sd card and run that?

I have attached the pic of my sxos backups

By the way, i have a backup of my SXOS files on my HDD with FW10.2.0 on the emutendo folder.

Please help. Thank You.

You cannot downgrade on Mariko units because there is no way to bypass the fuse check.