3DS Homebrew to create locale files to run out of region DLC with less hassle.
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DarkSynopsis Added Region Checking, Adeed Yokai Watch 3 (EUR)
Homebrew now checks console region and won't create locale files for the same region, so USA console won't create any locale files tied to USA region games.
Latest commit 092d501 Dec 9, 2018

README.md

Luma Locale Region Auto Setter

Ever had problems with DLC not working? or even the odd game has a black screen or SD error?
Chances are you are trying to play a game not from the same region as your console!

With this Homebrew it can create the required files needed to solve these issues, at least for the supported games
(listed below).

Instructions

Luma 7.0+ Required
Make sure "Enable game patching" option is on in the Luma config menu (Hold SELECT on boot)
That is pretty much it, run the homebrew, on first launch it will create a code.ips file so it can tell you if Game Patching
was found to be Enabled or not (Will always say Disabled in 3dsx version)
From there on hitting the "A" button will create any locale files you are missing.
If the CIA is still saying Game patching is disabled and you are certain its not its possible you ran a previous version of this homebrew and would need to delete the code.ips found in "/luma/titles/0004000005445000/" or feel free to ignore the line if you are sure Game patching is enabled.

Other Info

Don't know much C Programming, this just seemed like a quick fun project! sure the code is a mess but it works
Ideally it would be nice if a list could be pulled from a URL so no updates to the Homebrew is required
But we are nearing the end of the 3DS life span so I can't imagine we will see many more titles that require
this feature, would also be nice to get the region of the 3DS so it only creates the files you'd actually need
though a couple hundred text files aren't going to take up enough SD space to worry about, if you notice a
title is missing feel free to create an issue and let me know.

Current Title Count = 226

The Title Count is shown at the top of the Homebrew, if your number is lower you might want to grab a newer release.

JPN

000400000012DE00 = Fire Emblem IF
0004000000102F00 = Taiko no Tatsujin: Don to Katsu no Jikuu Daibouken
0004000000190E00 = Taiko no Tatsujin: Don Don! Mystery Adventure
0004000000115400 = 7th Dragon III Code: VFD
000400000014E000 = Aikatsu! 365 Nichi no Idol Days
0004000000169D00 = Aikatsu! My No.1 Stage!
0004000000197200 = Aikatsu Stars! My Special Appeal
000400000014AD00 = Dai Gyakuten Saiban: Naruhodou Ryuunosuke no Bouken
00040000000B8B00 = Dairantou Smash Brothers for Nintendo 3DS
00040000000C3A00 = Devil Survivor 2: Break Record
0004000000163C00 = Dragon Ball Z: Extreme Butoden
0004000000065C00 = Labyrinth no Kanata
0004000000196D00 = Dragon Ball Fusions
00040000000CF600 = Conception II: Children of the Seven Stars
0004000000120500 = Shin Sekaiju no Meikyuu 2: Fafnir no Kishi
00040000000A5300 = Mario Golf World Tour
00040000000F5800 = One Piece Unlimited World Red
00040000000C3600 = Persona Q
00040000000BAA00 = Gyakuten Saiban 5
0004000000095000 = Pokémon Mystery Dungeon: Gates to Infinity
00040000000C3900 = PazuDora Z - Puzzle & Dragons Z
00040000000FB100 = Senran Kagura 2: Shinku
0004000000166B00 = Shin Megami Tensei IV Final
0004000000078200 = Theatrhythm Final Fantasy
000400000010E200 = Final Fantasy Explorers
0004000000112800 = Magi: Aratanaru Sekai
00040000000C0100 = Magi: Hajimari no Meikyuu
0004000000169F00 = Medarot Girls Mission: Kabuto Ver.
000400000016A000 = Medarot Girls Mission: Kuwagata Ver.
0004000000134500 = Shingeki no Kyojin: Jinrui Saigo no Tsubasa CHAIN
00040000000FA600 = Soni Pro
0004000000078A00 = Super Robot Taisen UX
0004000000127900 = Super Robot Taisen BX
0004000000134300 = Lost Heroes 2
0004000000190A00 = Megami Meguri
000400000018EA00 = One Piece: Daikaizoku Colosseum
0004000000182F00 = PazuDora X: Kami no Shou
0004000000182E00 = PazuDora X: Ryuu no Shou
0004000000197500 = Puyo Puyo Chronicles
000400000018D000 = Sekaiju no Meikyuu V: Nagaki Shinwa no Hate
000400000012F500 = Tales of the World: Reve Unitia
0004000000140000 = Theatrhythm Dragon Quest
0004000000101200 = Puyo Puyo Tetris
0004000000102D00 = Highschool DxD
000400000016AD00 = Dragon Quest Monsters: Joker 3
00040000001ACB00 = Dragon Quest Monsters: Joker 3 - Professional
000400000018E900 = Boku no Hero Academia: Battle for All
000400000018CA00 = Detective Pikachu - Birth Of A New Duo
0004000000117200 = SmileBASIC
00040000000A4D00 = Sengoku Musou Chronicle 2nd
0004000000118300 = Sekaiju To Fushigi no Dungeon
0004000000073900 = Project X Zone
0004008C0015D500 = Corpse Party: Blood Covered - Repeated Fear
00040000001A2B00 = Fire Emblem Echoes: Shadows of Valentia
000400000012EF00 = Kirby Fighters Z
000400000018B300 = RPGMaker Fes
00040000001B5700 = Blaster Master Zero
0004000000199200 = Dragon Quest XI Sugisarishi Toki o Motomete
000400000F70C100 = Fire Emblem: Warriors
00040000001B2400 = Shin Megami Tensei: Deep Strange Journey
00040000001A0C00 = Radiant Historia: Perfect Chronology
000400000016C700 = Yo-kai Watch Busters: Akanekodan
000400000016C600 = Yo-kai Watch Busters: Shiroinutai
000400000018B000 = Youkai Sangokushi
00040000001AF400 = Yo-kai Watch 3: Sukiyaki
0004000000191000 = Yo-Kai Watch 3: Sushi
0004000000191100 = Yo-Kai Watch 3: Tempura
00040000001C9C00 = Yokai Watch Busters 2 Magnum
00040000001C9400 = Yokai Watch Busters 2 Sword
0004000000031500 = Nintendogs + Cats: Toy Poodle & New Friends
0004000000031000 = Nintendogs + Cats: French Bulldog & New Friends
0004000000030B00 = Nintendogs + Cats: Shiba & New Friends
0004000000154000 = Sega 3D Fukkoku Archives
0004000000180E00 = Sega 3D Fukkoku Archives 2
00040000001AA300 = Sega 3D Fukkoku Archives 3: Final Stage
000400000017FD00 = Minecraft
0004000000196700 = Sushi Striker: Way of Sushido

USA

000400000018A400 = Rhythm Heaven Megamix
000400000018F100 = Dragon Quest VIII
000400000018F800 = 7th Dragon III Code: VFD
0004000000159500 = Shin Megami Tensei: Devil Survivor 2 Record Breaker
000400000016CD00 = Dragon Ball Z: Extreme Butoden
00040000001AA900 = Dragon Ball Fusions
00040000000CD300 = AeternoBlade
0004000000095800 = Art Academy: Lessons for Everyone!
0004000000128600 = BIKE RIDER DX2: GALAXY
000400000017BA00 = Bravely Second: End Layer
0004000000112C00 = Conception II: Children of the Seven Stars
0004000000034F00 = Dead or Alive: Dimensions
00040000000EA900 = Disney Magical World
000400000015F200 = Etrian Odyssey 2 Untold: The Fafnir Knight
000400000015B200 = Etrian Mystery Dungeon
0004000000113200 = Fantasy Life
00040000000A0500 = Fire Emblem: Awakening
0004000000179800 = Fire Emblem Fates: Special Edition
0004000000179400 = Fire Emblem Fates: Birthright
0004000000179600 = Fire Emblem Fates: Conquest
000400000010F600 = Harvest Moon - The Lost Valley
000400000017EA00 = Hyrule Warriors Legends
000400000015D800 = IRONFALL Invasion
00040000000DCD00 = Mario Golf World Tour
000400000014CD00 = MIGHTY GUNVOLT
000400000012E700 = Moon Chronicles
000400000007AE00 = New Super Mario Bros 2
0004000000123D00 = One Piece Unlimited World Red
0004000000123400 = Persona Q
00040000000F1400 = Phoenix Wright: Ace Attorney - Dual Destinies
000400000018F400 = Phoenix Wright: Ace Attorney Spirit of Justice
00040000000BA800 = Pokémon Mystery Dungeon: Gates to Infinity
0004000000160C00 = Project X Zone 2
0004000000137700 = Puzzle & Dragons Z + Puzzle & Dragons: Super Mario Bros. Edition
0004000000106400 = Rusty's Real Deal Baseball
000400000016F200 = SAMURAI WARRIORS: Chronicles 3
0004000000165000 = SENRAN KAGURA 2: Deep Crimson
00040000000E5C00 = Shin Megami Tensei IV
000400000019A200 = Shin Megami Tensei IV: Apocalypse
00040000000B3500 = Sonic & All-Stars Racing Transformed
000400000008CD00 = Sparkle Snapshots 3D
000400000012D900 = Steamworld Heist
00040000000d7D00 = Steel Diver: Sub Wars
0004000000163100 = Stretchmo
00040000000EDF00 = Super Smash Bros
0004000000095100 = Theatrhythm Final Fantasy
00040000000FD500 = Theatrhythm Final Fantasy: Curtain Call
0004000000196E00 = Gotta Protectors
000400000019F500 = Story of Seasons : Trio of Town
000400000016DE00 = SmileBASIC
00040000000F1700 = Pure Chess
00040000001A3500 = Harvest Moon: Skytree Village
00040000001AB800 = Team Kirby Clash Deluxe
0004000000125500 = The Legend of Zelda: Majora's Mask 3D
00040000001B4000 = Fire Emblem Echoes: Shadows of Valentia
00040000001A4800 = Ever Oasis
00040000001BD500 = RPGMaker Fes
00040000001BD000 = Blaster Master Zero
00040000001C7700 = MIGHTY GUNVOLT BURST
000400000F70CC00 = Fire Emblem: Warriors
00040000001C5100 = Etrian Oddysey V
00040000001BEC00 = Culdcept Revolt
000400000019AA00 = Yo-Kai Watch 2: Fleshy Souls
00040000001C8F00 = Radiant Historia: Perfect Chronology
00040000001CD200 = Shin Megami Tensei: Deep Strange Journey
0004000000031700 = Nintendogs + Cats: Toy Poodle & New Friends
0004000000030D00 = Nintendogs + Cats: Golden Retriever & New Friends
0004000000031200 = Nintendogs + Cats: French Bulldog & New Friends
0004000000185C00 = SEGA 3D Classics Collection
00040000001B8700 = Minecraft
00040000001C1C00 = Sushi Striker: Way of Sushido
00040000001CEB00 = Yo-Kai Watch Blasters: Red Cat Corps
00040000001CEF00 = Yo-Kai Watch Blasters: White Dog Squad
00040000001D1900 = Luigi's Mansion

EUR

000400000018F200 = Dragon Quest VIII
00040000001A6C00 = 7th Dragon III Code: VFD
000400000016E600 = Shin Megami Tensei 2: Devil Survivor 2 Record Breaker
0004000000169600 = Dragon Ball Z: Extreme Butoden
00040000001AAA00 = Dragon Ball Fusions
0004000000153B00 = A-Train: 3D City Simulator
0004000000084D00 = AeternoBlade
000400000017BB00 = Bravely Second: End Layer
0004000000123C00 = Conception II: Children of the Seven Stars
0004000000038A00 = Dead or Alive: Dimensions
00040000000D4B00 = Disney Magical World
000400000016E900 = Etrian Odyssey 2 Untold: The Fafnir Knight
000400000016EA00 = Etrian Mystery Dungeon
000400000017CD00 = Tank Troopers
0004000000113100 = Fantasy Life
000400000009F100 = Fire Emblem: Awakening
000400000017A800 = Fire Emblem Fates: Special Edition
0004000000179500 = Fire Emblem Fates: Birthright
0004000000179700 = Fire Emblem Fates: Conquest
0004000000163200 = Fullblox
000400000012BE00 = Harvest Moon - The Lost Valley
000400000017EB00 = Hyrule Warriors Legends
000400000004DC00 = Imagine: Fashion World 3D
000400000015B100 = IRONFALL Invasion
00040000000DCE00 = Mario Golf World Tour
0004000000165700 = MIGHTY GUNVOLT
0004000000084F00 = New Art Academy
000400000016A100 = New Style Boutique 2
000400000007AF00 = New Super Mario Bros 2
0004000000106200 = Nintendo Pocket Football Club
0004000000117E00 = One Piece Unlimited World Red
0004000000149F00 = Persona Q
00040000000F1E00 = Phoenix Wright: Ace Attorney - Dual Destinies
000400000018FA00 = Phoenix Wright: Ace Attorney Spirit of Justice
00040000000BA900 = Pokémon Mystery Dungeon: Gates to Infinity
0004000000162000 = Project X Zone 2
0004000000137800 = Puzzle & Dragons Z + Puzzle & Dragons: Super Mario Bros. Edition
0004000000173B00 = SAMURAI WARRIORS: Chronicles 3
0004000000165800 = SENRAN KAGURA 2: Deep Crimson
0004000000141C00 = Shin Megami Tensei IV
00040000001A6B00 = Shin Megami Tensei IV: Apocalypse
000400000008FC00 = Sonic & All-Stars Racing Transformed
000400000008CC00 = Sparkle Snapshots 3D
0004000000157C00 = Steamworld Heist
00040000000D7E00 = Steel Diver: Sub Wars
00040000000EE000 = Super Smash Bros
0004000000091600 = Theatrhythm Final Fantasy
00040000000FCA00 = Theatrhythm Final Fantasy: Curtain Call
00040000000EDA00 = Pure Chess
000400000009AD00 = Foto Glitter 3D
00040000001AB900 = Team Kirby Clash Deluxe
0004000000125600 = The Legend of Zelda: Majora's Mask 3D
00040000001B4100 = Fire Emblem Echoes: Shadows of Valentia
00040000001A4900 = Ever Oasis
00040000001B9D00 = RPGMaker Fes
00040000001BC300 = Blaster Master Zero
00040000001C7600 = MIGHTY GUNVOLT BURST
000400000F70CD00 = Fire Emblem: Warriors
00040000001C5300 = Etrian Oddysey V
00040000001BCA00 = Culdcept Revolt
000400000019AB00/000400000019B000 = Yo-Kai Watch 2: Bony Spirits
000400000019AC00/000400000019B100 = Yo-Kai Watch 2: Fleshy Souls
00040000001B2900 = Yo-Kai Watch 2: Psychic Specters
00040000001CD900 = Radiant Historia: Perfect Chronology
00040000001CE100 = Shin Megami Tensei: Deep Strange Journey
0004000000030C00 = Nintendogs + Cats: Golden Retriever & New Friends
0004000000031600 = Nintendogs + Cats: Toy Poodle & New Friends
0004000000031100 = Nintendogs + Cats: French Bulldog & New Friends
000400000019A700 = SEGA 3D Classics Collection
00040000001C1D00 = Sushi Striker: Way of Sushido
00040000001CEC00 = Yo-Kai Watch Blasters: Red Cat Corps
00040000001CF000 = Yo-Kai Watch Blasters: White Dog Squad
00040000001D6800 = Yo-kai Watch 3