Homebrew Question Can the Switch Downgrade?

[AlphaSapphire]

Can I restore my 5.0.2 backup to a 5.1.0 nintendo switch and downgrade or is that not a possibility?

 

[jRRRRRRRRRRR]

Yes you can, 5.1.0 burnt no fuses.

 

[CatmanFan]

Yes you can, 5.1.0 burnt no fuses.

I thought downgrading wasn't possible yet.
There isn't a noob-friendly method out there still, am I right?

 

[jRRRRRRRRRRR]

I thought downgrading wasn't possible yet.
There isn't a noob-friendly method out there still, am I right?

If the update you've updated to doesn't burn any fuses from what firmware u were on before you can downgrade with a nand backup.

 

[Clydefrosch]

actually a good question, are nand backups made before a fuse burn still useful for anything?

 

[AlphaSapphire]

If the update you've updated to doesn't burn any fuses from what firmware u were on before you can downgrade with a nand backup.

I want to play Mario Tennis but then come back to 5.0.2

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I thought downgrading wasn't possible yet.
There isn't a noob-friendly method out there still, am I right?

You just restore your NAND backup

 

[MAXLEMPIRA]

So... If a made a 4.x Backup of my Switch, will I be able to Update to play Mega Man Legacy Collection and Crash, and then restore my Nand Backup?

 

[AlphaSapphire]

So... If a made a 4.x Backup of my Switch, will I be able to Update to play Mega Man Legacy Collection and Crash, and then restore my Nand Backup?

Thats what I want to know If i could play Mario Tennis then return to 5.0.2

 

[jRRRRRRRRRRR]

Thats what I want to know If i could play Mario Tennis then return to 5.0.2

You can.

 

[MAXLEMPIRA]

Thats what I want to know If i could play Mario Tennis then return to 5.0.2

Yeah, I really want to buy Mega Man but the update keep me from do it... I'm waiting the CFW just to play GCN Games on portable So... June 15th is the date...

 

[OrGoN3]

So... If a made a 4.x Backup of my Switch, will I be able to Update to play Mega Man Legacy Collection and Crash, and then restore my Nand Backup?

As has been said, as long as Mega Man Legacy Collection doesn't require a firmware that burnt fuses above and beyond your 4.x NAND backup, then you can. Otherwise, you cannot.

 

[MAXLEMPIRA]

As has been said, as long as Mega Man Legacy Collection doesn't require a firmware that burnt fuses above and beyond your 4.x NAND backup, then you can. Otherwise, you cannot.

The problem is... I don't know which FW are those, but Mega Man LC for Switch was Launched two weeks ago, so maybe it needs FW 5.0 but idk. Can you explain more about these FW that burn fuses?

EDIT:
OK, sorry, I just found what's about that, and XB360 had the same "solution" for downgrading, so... no, I'll have to wait for the CFW or buy a new system :/ Thanks for the info

 

[connectconnect]

Check this guy doing so:

 

[Ericthegreat]

I want to play Mario Tennis but then come back to 5.0.2

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You just restore your NAND backup

I'd wait. Upgrade with Atmosphere.

 

[BvanBart]

You can.

It does burn fuses. With every update... where is your proof that it does not?

 

[connectconnect]

It doesn't burn fuses with every upgrade, it share fuses with same level upgrade

http://switchbrew.org/index.php?title=Fuses#Anti-downgrade

 

[mnemonicpunk]

There are 2 types of updates on the Switch: Those that burn fuses and those that don't. Whenever an update burns a fuse, that means NAND backups from before that update can not be booted anymore.

So if you update from 4.1.0 to 5.0.1 for example, you burn a fuse, meaning you can not downgrade to below 5.x anymore.
If, however, you update from 5.0.1 to 5.1.0 you don't burn a fuse, meaning you can downgrade by simply writing back your NAND backup.

As a rule of thumb: When the major version number changes (e.g. 4 -> 5) a fuse is burnt and you can not downgrade anymore. This is not a fixed rule though, occasionally an update will burn a fuse even on same major versions (for example 3.0.0 -> 3.0.1) so always look it up before doing anything rash.

 

[reminon]

actually a good question, are nand backups made before a fuse burn still useful for anything?

Speculation: they contain device unique info, that could possibly be used to hack together with a newer donor nand in case you corrupt yours without a backup.

 

[DigitalJosee]

Check this guy doing so:

I don't know French, but isn't there an error message on his switch after the downgrade?

EDIT: "La mise à jour de la console est prête à être effectuée" means "The console update is ready to be performed", so, no errors.

Enviado de meu SM-G935F usando Tapatalk

 

[SecureBoot]

Ok good. I accidentally just got update so I'm glad I can go back