Hacking 002 123 error

Jakic007

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Hi,
I have Sky3DS Blue Button, N3DS XL 9.6 and private header from Animal Crossing New Leaf. Every game except SSB and MH4U works online. With SSB and MH4U I get 002 123 error and it says that I can't go online with this game card. How can I fix that?
 

YourHero

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002-123 is a connection issue relating to access point. Since some games do work I would double check the headers. Download any updates.
 

Samwix

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Try to change Manufacturer line (where it's wrote 45 on the pic) of your header by 45:

7CQa0UW.png
 

Samwix

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,download Hex Editor, put your header.bin in, then in 0000040 line, set 45 instead of AE/C2

Then put your private header in template
But I don't know if you may lose your savegames
 

VerseHell

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Try this :
- Load the rom you want to play online with gateway rom patcher
- Click on import header then select your animal crossing header
- You should get this message
1423482717-fix.png

Click Yes then Apply
- Modify your template with the fixed chip id, like this :
1423606200-template-after2.png
- Then write your rom with the modified template.
 

Jakic007

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Where is import header option? I load ROM and patch option is grayed out and it says nothing found.
 

Jakic007

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That was the problem. When I am editing template file do I need to replace my values with ones from GW ROM patcher or with ones from your picture?
 

Foxi4

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People keep recommending GWRP without knowing what it actually does. The GW compatible header it injects is immediately overwritten by DiskWriter, omitting this step changes nothing. All you have to do is fiddle with the template, there is no reason to boot GW patcher at all.
 

Jakic007

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So, I don't really understand. What do I need to do to play SSM or MH4U online with my private header without error?
 

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