Atmosphere Error 2002-0001 how to fix

  • Thread starter Thread starter JohnK555
  • Start date Start date
  • Views Views 1,917
  • Replies Replies 34

JohnK555

Member
Newcomer
Joined
Apr 8, 2026
Messages
22
Reaction score
0
Trophies
0
Age
31
XP
27
Country
Greece
So yesterday, I accidentaly downgraded my CFW to 19.0.1, and now every time I try to boot it gives me this error, with program 0100000000000025.
I was wondering how to safely update my emunand through maintenance mode, since there's no 0100000000000025 file in my atmosphere folder and fixing archive bit through hekate did nothing. I'm currently on HATS 718ca6c and hekate 6.5.2. And btw SysMMC CFW just gives me a black screen.

Any help would be appreciated. Thank you in advance.
 
So yesterday, I accidentaly downgraded my CFW to 19.0.1, and now every time I try to boot it gives me this error, with program 0100000000000025.
I was wondering how to safely update my emunand through maintenance mode, since there's no 0100000000000025 file in my atmosphere folder and fixing archive bit through hekate did nothing. I'm currently on HATS 718ca6c and hekate 6.5.2. And btw SysMMC CFW just gives me a black screen.

Any help would be appreciated. Thank you in advance.
You probably blanked out your serial in an ini file, try booting in airplane mode to see if it still crashes.
 
Update: SysMMC no longer gives me black screen
Post automatically merged:


How... do I do that?
Well firsly let me try to explain what's wrong. Your switch is on wifi and trying to connect to nintendo servers, when it does this it sends your serial. If it fails to connect to nintendo or your serial is blanked, it will cause a crash - so you need to find out what's up.

1: You probably installed a file which is blocking nintendo server.
2: You maybe blanked your serial with tinfoil or via an ini file.
3: You might have set a custom dns in your wifi settings.

Let's start the easy way - rename atmosphere folder on the sd card to atmosphere.bak

Redownload atmosphere from here: https://github.com/Atmosphere-NX/Atmosphere/releases

1: Copy the clean untouched atmosphere version to the sd card and try to boot.
2: Chances are it will boot properly, so it can be assumed that some config or module or patch in atmosphere.bak broke something. So just copy 1 file/folder from atmosphere.bak into the clean atmosphere one at a time until you find out what file broke it.
3: If the clean atmosphere folder still causes a crash - look in the root of the sd card for a file ending in .ini and remove it.
 
Well firsly let me try to explain what's wrong. Your switch is on wifi and trying to connect to nintendo servers, when it does this it sends your serial. If it fails to connect to nintendo or your serial is blanked, it will cause a crash - so you need to find out what's up.

1: You probably installed a file which is blocking nintendo server.
2: You maybe blanked your serial with tinfoil or via an ini file.

Let's start the easy way - rename atmosphere folder on the sd card to atmosphere.bak

Redownload atmosphere from here: https://github.com/Atmosphere-NX/Atmosphere/releases

1: Copy the clean untouched atmosphere version to the sd card and try to boot.
2: Chances are it will boot properly, so it can be assumed that some config or module or patch in atmosphere.bak broke something. So just copy 1 file/folder from atmosphere.bak into the clean atmosphere one at a time until you find out what file broke it.
3: If the clean atmosphere folder still causes a crash - look in the root of the sd card for a file ending in .ini and remove it.
So exosphere.ini? I already tried that, and are you talking about the Sysnand or the Emunand, cuz I don't think the Emunand performs a serial check.

Btw Sysnand is fixed.
 
It doesn't matter, just do what I told you and report back with your findings.
Oh ok
Post automatically merged:

Well firsly let me try to explain what's wrong. Your switch is on wifi and trying to connect to nintendo servers, when it does this it sends your serial. If it fails to connect to nintendo or your serial is blanked, it will cause a crash - so you need to find out what's up.

1: You probably installed a file which is blocking nintendo server.
2: You maybe blanked your serial with tinfoil or via an ini file.
3: You might have set a custom dns in your wifi settings.

Let's start the easy way - rename atmosphere folder on the sd card to atmosphere.bak

Redownload atmosphere from here: https://github.com/Atmosphere-NX/Atmosphere/releases

1: Copy the clean untouched atmosphere version to the sd card and try to boot.
2: Chances are it will boot properly, so it can be assumed that some config or module or patch in atmosphere.bak broke something. So just copy 1 file/folder from atmosphere.bak into the clean atmosphere one at a time until you find out what file broke it.
3: If the clean atmosphere folder still causes a crash - look in the root of the sd card for a file ending in .ini and remove it.
 
Last edited by JohnK555,
Well firsly let me try to explain what's wrong. Your switch is on wifi and trying to connect to nintendo servers, when it does this it sends your serial. If it fails to connect to nintendo or your serial is blanked, it will cause a crash - so you need to find out what's up.

1: You probably installed a file which is blocking nintendo server.
2: You maybe blanked your serial with tinfoil or via an ini file.
3: You might have set a custom dns in your wifi settings.

Let's start the easy way - rename atmosphere folder on the sd card to atmosphere.bak

Redownload atmosphere from here: https://github.com/Atmosphere-NX/Atmosphere/releases

1: Copy the clean untouched atmosphere version to the sd card and try to boot.
2: Chances are it will boot properly, so it can be assumed that some config or module or patch in atmosphere.bak broke something. So just copy 1 file/folder from atmosphere.bak into the clean atmosphere one at a time until you find out what file broke it.
3: If the clean atmosphere folder still causes a crash - look in the root of the sd card for a file ending in .ini and remove it.
I tried it and it doesn't work. Maybe is there some way to disable nintendo blocking for one boot so that I can update through maintenance mode, and then re-enable the block?
 
Last edited by AmeliaFox,
No, if you use daybreak from sysmmc it wil never update your emunand. You don't have a fault with your emunand - it's the nim module in the firmware throwing an error, just do what I told you to do before and you'll have it fixed in no time.
I tried that, and it doesn't work.
 
I tried that, and it doesn't work.
See here then:
 
downgrading from ≧21 to ≤20 will always make this kind of crash
(and it has nothing to do with blanking serial or blocking Nintendo servers)

@JohnK555 use this → https://github.com/sthetix/DowngradeFixer
and you're done.
I tried that, and guess what. It doesn't work.
Post automatically merged:

See here then:
Is there any outside way of updating my firmware?
Post automatically merged:

downgrading from ≧21 to ≤20 will always make this kind of crash
(and it has nothing to do with blanking serial or blocking Nintendo servers)

@JohnK555 use this → https://github.com/sthetix/DowngradeFixer (it makes the same as the topic posted above, but automatically ;) )
and you're done.
I actually downgraded from 22.0.0 to 19.0.1...
Post automatically merged:

See here then:
Is it possible to update the emunand through an outside source.
 
Last edited by JohnK555,
I tried that, and guess what. It doesn't work.
Post automatically merged:


Is there any outside way of updating my firmware?
Post automatically merged:


I actually downgraded from 22.0.0 to 19.0.1...
Post automatically merged:


Is it possible to update the emunand through an outside source.
Maybe with NxNandManager. https://github.com/eliboa/nxnandmanager

What you would probably need to do is make a temp emunand on fw19.0.1 then dump boot0 and boot1 from the temp emunand with NxNandManager. Then in NxNandManager mount your broken emnuand and replace boot0 and boot1 with the good one's you just dumped, then replace the firmware files (dump and decrypt system partiton - replace files, inject decrypted system partition). There's probably a guide on how to do this somewhere.
 
Last edited by AmeliaFox,
Maybe with NxNandManager.

What you would probably need to do is make a temp emunand on fw19.0.1 then dump boot0 and boot1 from the temp emunand with NxNandManager. Then in NxNandManager mount your broken emnuand and replace boot0 and boot1 with the good one's you just dumped, then replace the firmware files (dump and decrpypt system partiton - replace files, inject decrypted system partition). There's probably a guide on how to do this somewhere.
Can you give me, like, a proper guide on how to do it?
 
Again though, maybe I am able to update my firmware through tegraexplorer or lockpick rcm? Is that possible?
No, probably the best thing you can do at this point if you don't know what you are doing is just create a new emunand altogether and reinstall all your stuff and don't try to downgrade in the furture.

If that's not something you want to do you should backup your broken emunand before you start messing about with it, then learn to use that program I linked as this is pretty much your last option to fix your current emunand. On the bright side at least it was your emunand you broke and not your sysnand.

Here's a short basic guide;

1: Use NxNandManager to dump your broken nand user partition (right click - decrypt and dump to file)
2: Next, use an old emunand backup which is working, update old emunand backup to 19.0.1 - test it works.
3: Replace user partition in your newly updated emunand with the decrypted one you backed up. (right click - restore from file)
4: Click save as raw dump - then replace the created file with the new emunand you made.

Try to see if this works.
 
Last edited by AmeliaFox,

Site & Scene News

Popular threads in this forum