Maybe you do something wrong when you extract your header from MK7.
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I got unbanned :yaysp::grog::nds::yay::rofl2::hrth::toot:
What flashcard were you using (Gateway or Sky3DS etc): Sky3DS
What game were you playing: only Monster Hunter 4 Ultimate
What was your sysNAND firmware version when playing: 9.8.0-25U
Were you using a .CIA or a .3DZ: NO
Can you visit...
So you have to use with SSF another header because with me i use the paper mario header and SSB not working online that i try change the chip AE, 45, and C2. When i use the header extract from my Luigis Mansion 2 SSB work online with this header and change chip for C2. Try another private header...
when you download the template from sky3ds site, have a file settings.ini for download too that contains the all information about games on template
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if you change e can go online, post feedback here for help another users.
Try do exactly like the frist picture on this tutorial that show in the red square C2. You have to change on your template file, save and delete your game from sdcard and ´put the game again in your sdcard with the template that you have changed
Tutorial ...
Ok try another private header friend. Nice that this error is not only for banned because for a moment i think you got banned using private header.
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Try change the manufactured chip on template for C2. I can't go online with the SSB with paper mario header and a try with my Luigi Mansion...
I know but i have only one new nintendo 3ds xl on 9.8 that got banned :(
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What flashcard were you using (Gateway or Sky3DS etc): Sky3DS
What game were you playing: only Monster Hunter 4 Ultimate
What was your sysNAND firmware version when playing: 9.8.0-25U
Were you using a .CIA or a...