This video will teach you how to downgrade your 3DS firmware to 11.13. But unfortunately, I only have the CTRNAND firmware for US region consoles.
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LINKS

11.13 CTRTRANSFER LINK : https://drive.google.com/drive/folders/1h3k-o3eR7hMb_MHIITAX039ahYRnv6zH?usp=sharing

Faketik : https://github.com/ihaveamac/faketik/releases/tag/v1.1.2

How to repair/ update Godmode9 : https://youtu.be/WA9NT7ZJ6ls

3DS Starterpack : link.sthetix.info/starterpack

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MUSIC
https://elements.envato.com/gangster-story-U8BDFQ6
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DONATION

If you want to make a donation, click the link below

https://www.patreon.com/sthetixofficial

Thank you
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HOW TO CONTACT ME

Facebook : https://www.facebook.com/sthetixofficial
Twitter : https://twitter.com/sthetixofficial
Instagram : sthetixofficial
Discord : sthetix#7311
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CREDIT

ihaveamac
D0k3
TeamLuma
Nanquitas

source