Hacking Question Can i downgrade with system backup. 7.0 to 6.20

AliBeg · Feb 24, 2019

Hi, i did update my switch to 7.0.1 yesterday. Before i ever used CFW i did a system backup with hekate. I think its about 29 GB large. The backup is on FW 6.20. Before i updated to 7.0 i was running on SX OS 2.5.2 and games was installed with SX OS installer v 1.2. Installed games is on Sd micro Card with sx OS.
Can i downgrade and witch guide to use? Is there some disadvantages to do so? IF i downgrade what Will happen whit my game saves?

Thanks for your time...

Kubas_inko · Feb 24, 2019

You can downgrade via choidujourNX or just by restoring the NAND. But you will have to boot through RCM every time, as your fuses are burnt. Or you can use Atmosphere and stay on 7.0.0/1.

cucholix · Feb 24, 2019

Just stay on 7.0.1 + atmos 0.8.4

AliBeg · Feb 24, 2019

IF i try Atmosphere, do i need to reinstall games or are they going to run as they are installed?
Is it possible to later change to SX OS when they come with 7.0 support?
Do Atmosphere reckognize installed games on sd card?

Kubas_inko · Feb 24, 2019

AliBeg said:
IF i try Atmosphere, do i need to reinstall games or are they going to run as they are installed?
Is it possible to later change to SX OS when they come with 7.0 support?
Do Atmosphere reckognize installed games on sd card?

If you get sigpatches, they are going to work normally.
Yes, but I doubt it will be any time soon. Because they either have to use sept and show that they are using sept (very unlikely with their ego) or make their own "thing".
Yes. Atmo works just like SX OS. There is just no USB, XCI support and EmuNAND (for public mind you).

AliBeg · Feb 24, 2019

Kubas_inko said:
You can downgrade via choidujourNX or just by restoring the NAND. But you will have to boot through RCM every time, as your fuses are burnt. Or you can use Atmosphere and stay on 7.0.0/1.

What do you mean boot through RCM every time. Do You mean even if switch goes to sleep mode?
Thank you for latest anwser.

Kubas_inko · Feb 24, 2019

AliBeg said:
What do you mean boot through RCM every time. Do You mean even if switch goes to sleep mode?
Thank you for latest anwser.

If it goes to sleep, does it boot after that? No.

AliBeg · Feb 24, 2019

Kubas_inko said:
If it goes to sleep, does it boot after that? No.

Allwright. Now i get it. You mean that auto RCM Will not work.

Kubas_inko said:
You can downgrade via choidujourNX or just by restoring the NAND. But you will have to boot through RCM every time, as your fuses are burnt. Or you can use Atmosphere and stay on 7.0.0/1.

Can i restore NAND from 7.0 to 6.20 with SX OS RCM or do i need to do it with hekate?

Kubas_inko · Feb 24, 2019

AliBeg said:
Allwright. Now i get it. You mean that auto RCM Will not work.

Can i restore NAND from 7.0 to 6.20 with SX OS RCM or do i need to do it with hekate?

I meant that if you are going to use 6.2.0 or anything which requires less than 9 fuses, you have to boot through RCM every time. AutoRCM is going to work fine.
If you did the backup with SX OS, restore it with SX OS. Don't know how compatible those 2 are.

natkoden · Feb 24, 2019

Just boot atmosphere 0.8.4 downgrade with choidojournx and then go back to sx os

AliBeg · Feb 28, 2019

I used hekate tool and saw that 9 fuses are brunt. I have backup from original firmware 6.2 see pic.
Is there chance to brick my switch if i try just to restore backup so that i can run sx OS on 6.2 ?

Thanks in advance..

Lacius · Feb 28, 2019

AliBeg said:
I used hekate tool and saw that 9 fuses are brunt. I have backup from original firmware 6.2 see pic.
Is there chance to brick my switch if i try just to restore backup so that i can run sx OS on 6.2 ?

Thanks in advance..

You can use Atmosphere with 7.0.x.

Kafluke · Feb 28, 2019

AliBeg said:
I used hekate tool and saw that 9 fuses are brunt. I have backup from original firmware 6.2 see pic.
Is there chance to brick my switch if i try just to restore backup so that i can run sx OS on 6.2 ?

Thanks in advance..

If you have 9 burnt fuses and you downgrade using your backup you will not be able to boot normally. You will have to use a jig or autorcm to boot EVERY time you turn on your switch.

If you had been smarter and had autoRCM turned when you were on 6.2 and then used choidejournx to update to 7.x you would have preserved your fuse count and downgrading would be a snap.

Hacking Question Can i downgrade with system backup. 7.0 to 6.20

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