Many Nintendo Switch games are capped at 30 FPS — but the emulation community has spent years building mods that unlock higher framerates. Kenji-NX 2.1.0 added a built-in Mod Manager, making these mods easy to install on Android. This guide explains how 60FPS mods work, where the well-known ones come from, and what to watch out for.

Quick Answer

Yes, Kenji-NX supports game mods through its built-in Mod Manager (added in 2.1.0-pr.1): you import a mod pack and toggle it per game. Dynamic FPS mods are the most popular type — instead of forcing a fixed 60 FPS, they let the framerate scale with what your phone can actually render while keeping game speed correct. Whether a specific game has a working 60FPS mod depends entirely on community modders, and results vary by title and device.

How 60FPS Mods Work

On real Switch hardware, many games cap their framerate at 30 FPS. Community modders create patches that raise or remove that cap. There are two main approaches:

Dynamic FPS is generally the better choice on Android: a static 60FPS patch on a phone that can only render 40 FPS often feels worse than the original 30, because the game slows down instead of dropping frames. Dynamic FPS avoids that trap.

How to Install Mods in Kenji-NX

1. Find a mod for your game on a community mod database. GameBanana is the best-known hub where modders publish Switch mods, including 60FPS patches — search for your game’s title there. (We link the site, not specific downloads; always check a mod’s comments for compatibility notes.)
2. Download the mod pack to your phone. It usually arrives as a folder or archive containing an exefs patch.
3. Open Kenji-NX’s Mod Manager and import the mod (added in 2.1.0-pr.1, alongside the Cheat Manager — see our cheats & mods guide).
4. Enable the mod for the specific game, then launch. If the game behaves oddly, disable the mod from the manager — no files are harmed.

Important Warnings

• Mods are unofficial. They can cause crashes, visual bugs, or soft-locks. If a game starts misbehaving after you enable a mod, the mod is the first suspect — see our crash fixes.
• Some games tie physics or timers to framerate. Kenji-NX’s own 2.0.5 release notes warn that its Turbo Mode (which speeds up CPU cycles) can behave unpredictably for exactly this reason. The same caution applies to FPS mods: test carefully.
• Never use mods online. Online play doesn’t work on emulators anyway, but as a general rule, modified game data plus any networked service is a ban risk.
• Only mod games you own. Mods don’t change the legality equation: dump your own copy, then mod it.
• Not every game has a 60FPS mod. Modders prioritize popular titles. Check the mod database for your specific game and version — a mod built for v1.0 may not work on v1.2.

Which Games Benefit Most?

Fast-paced action games and open-world titles show the biggest subjective improvement from higher framerates — this is why Dynamic FPS mods are frequently discussed alongside demanding new releases like Pokémon Legends: Z-A. Slower-paced or 2D games (think turn-based RPGs) gain less. And remember: a mod can’t give your phone GPU power it doesn’t have. Pair mods with sensible settings — our lag fix guide covers the fundamentals.

Frequently Asked Questions

Does Kenji-NX support 60FPS mods?

Yes. Kenji-NX 2.1.0 added a Mod Manager with import/delete support. Import a community-made 60FPS or Dynamic FPS patch and enable it per game.

What is a Dynamic FPS mod?

A mod that lets the game’s framerate scale with your device’s rendering performance while keeping game speed correct — so dips below 60 feel like dropped frames rather than slow-motion. It’s the recommended approach on phones that can’t hold a locked 60.

Where do I find Switch mods?

Community mod databases like GameBanana, where modders publish and document their work. Search for your game’s title plus “60fps”. Check comments for version compatibility.

Can 60FPS mods damage my phone or game?

No permanent harm — mods don’t modify your dumped game file, they patch it at load time. Worst case is crashes or glitches; disable the mod in the Mod Manager to revert.

Do 60FPS mods work on every game?

No. Each mod is hand-built for a specific game (and often a specific game version). Popular titles have the best coverage.

Will a 60FPS mod make a slow phone fast?

No. Mods remove software caps; they can’t create GPU performance. A phone that renders a game at 25 FPS will still render it at 25 FPS — that’s what Dynamic FPS mods are for (correct speed at whatever FPS you get).

Upgrading phones is the number one way people lose a 100-hour save file. Since 2.1.0-pr.1, Kenji-NX ships a built-in Save Manager with export/import as .zip — which makes moving saves between phones straightforward if you do it before wiping the old one. Follow this guide in order and your progress comes with you.

Method 1: Save Manager .zip Export (Recommended)

This is the official path and works on pr.1 and newer, no root required:

1. On your old phone, open Kenji-NX and go to the Save Manager.
2. Select the game, choose Export — your saves are packed into a .zip file.
3. Copy the .zip to your new phone (USB cable, Nearby Share, or a cloud drive).
4. On the new phone, install Kenji-NX and set it up with your own dumped prod.keys and firmware (see our firmware & keys guide).
5. Open Save Manager on the new phone, choose Import, and select the .zip.
6. Launch the game and confirm your save loads before you wipe the old phone.

Repeat for each game — exports are per-title.

Method 2: Manual Copy (Advanced)

Saves live inside the app’s private data, and Android’s scoped storage makes manual copying fiddly without root or ADB. The .zip method above exists precisely to avoid this. Only go manual if you are comfortable with ADB pull/push and know exactly which title IDs you need.

Before You Wipe the Old Phone: Checklist

Verify every .zip actually contains files (non-zero size) before the old phone gets wiped or traded in.

Keep an Off-Phone Backup

A save that exists only on one phone is one accident away from gone. After exporting, stash the .zips somewhere off-device. I keep mine in pCloud — the files are tiny, so even the free tier swallows a whole library of saves, and they are there when a phone is lost, broken, or reset. Disclosure: that is an affiliate link — I may earn a commission at no extra cost to you.

Prefer not to use cloud storage? A USB stick or your PC works fine too. The important part is: two copies, two places.

Updating Kenji-NX Without Losing Saves

Installing a newer Kenji-NX APK over the old one does not wipe saves — but “does not” is not “cannot.” Export your most precious saves before any update anyway; it takes thirty seconds. The full safe-update flow is in our update guide.

Frequently Asked Questions

Does updating Kenji-NX delete my saves?

Normally no — saves live in app data that survives an APK update. Still, export a .zip first; thirty seconds of caution beats a hundred lost hours.

Can I move saves to a different emulator, like Eden?

Not directly. Kenji-NX (Ryujinx-family) and Eden (Yuzu-family) use different save formats. Conversion is unreliable — expect to start fresh when switching emulator families.

Can I move saves from Kenji-NX on Android to Ryujinx on PC?

Often yes, since they share the Ryujinx save layout — copy the save data into the desktop Ryujinx save folder for that title ID. Back up first; title IDs must match exactly.

The import says success but the game shows no save — what went wrong?

The usual culprits: wrong title ID (different game version/region), or the game was never launched once on the new phone to create its save folder. Launch the game once, then import.

Do mods and cheats transfer with the save .zip?

No — the .zip contains saves only. Move mods and cheats separately through the Mod/Cheat Manager.

How big are save backups?

Tiny — usually kilobytes to a few megabytes per game. That is why cloud backup is painless; a free storage tier holds years of saves.

The Snapdragon 8 Elite (Adreno 830) is the best phone chip for Kenji-NX in 2026 — the 2.1.0 pre-releases were tuned specifically for it — and the Snapdragon 8 Gen 3 remains excellent thanks to mature driver support. This guide walks through the setup that gets the most out of these flagship chips, with honest notes on where the limits still are.

Step 1: Install the Right Build Variant

Kenji-NX 2.1.0-pr.2 ships five Android build variants, and picking the right one matters more than any in-app setting. For these chips:

Grab the correct APK from our download page. If you are unsure which chip you have, the Standard build still works — the tuned variants just squeeze out more.

Step 2: Use a Current Turnip Driver

Turnip — the open-source Vulkan driver for Qualcomm Adreno GPUs — is close to mandatory for good results on Snapdragon. One honest caveat: the 8 Elite’s Adreno 830 went a long time with weak Turnip support, which is why early reports sometimes favored the 8 Gen 3. Community driver work for Adreno 8xx improved through 2026, so use the newest Turnip build your device accepts. Our driver guide explains installation.

Step 3: Recommended Starting Settings

Treat these as a starting point, not a promise — every game behaves differently.

What each option does is covered in our graphics settings explainer.

A Community-Reported Example: Pokémon Legends: Z-A

To show how this looks in practice, here is a settings set from a community test video (OnePlus 15, Snapdragon 8 Elite Gen 5, via a community Kenji-NX-based build), reported at roughly 30–60 FPS: docked mode off, 0.75x custom resolution, disk shader cache on, force maximum clocks on, NCE off, threaded rendering off, plus a Dynamic FPS community mod.

Read this as one data point, not a guarantee. Community reports vary by game version, emulator build, and device — use it as a starting template for demanding 3D games and adjust from there.

Honest Expectations for Other Chips

Not on a flagship? Here is the realistic picture:

Buying advice lives on our best phones for Switch emulation page. If a game stutters regardless of settings, work through our lag and stutter fixes before blaming the chip.

Heat and Battery: The Flagship Tax

Flagship chips only sustain flagship performance while cool. Force Maximum Clocks plus charging in a warm room is the classic recipe for thermal throttling — the phone boosts, overheats, then performs worse than stock settings would have. For long sessions, play unplugged or add active cooling.

Frequently Asked Questions

Is the 8 Elite always better than the 8 Gen 3 for emulation?

On paper yes, but driver maturity matters as much as silicon. Through 2025 the 8 Gen 3’s mature Turnip support sometimes beat the 8 Elite in real games; 2026 driver work has been closing that gap.

Which pr.2 build variant should 8 Elite Gen 5 phones use?

The dedicated Snapdragon 8 Elite Gen 5 build, which enables SVE/SVE2 instructions. Older Elite/8 Gen 3 phones use the 8 Gen 3 / 8 Elite (Armv8.7-A) variant.

Do I need root for these settings?

No. Everything here works on a stock, non-rooted phone.

Why do YouTube settings not work the same on my phone?

Chip binning, thermals, driver version, game version, and emulator build all differ. Treat shared settings as a template and tune one option at a time.

Will these settings make every game full speed?

No — and anyone promising that is selling something. Compatibility varies per game; these settings give flagship hardware its best chance.

Should I use docked mode on my phone?

Generally no. Docked mode raises the performance target and the heat with it. Save it for tablets, TV boxes, or games that need the docked profile.

Kenji-NX inherits its graphics pipeline from Ryujinx and adds a handful of Android-specific options on top. The good news: the defaults are sensible, and most players never need to touch anything. This guide explains every graphics setting in plain English — what it does, whether you should change it, and when — so you only adjust things when you have a reason to.

If you are setting up the emulator for the first time, start with our setup guide, then come back here to fine-tune.

The One Rule of Emulator Settings

Change one setting at a time, test, and only keep the change if it helps. Stacking five tweaks at once makes it impossible to know which one fixed — or broke — your game. If a game already runs well, leave everything alone.

Docked Mode

What it is: A real Nintendo Switch behaves differently when docked to a TV — it runs at higher GPU clocks and games may target higher resolutions. The Docked Mode toggle tells games your “Switch” is docked, unlocking that higher-performance profile.

Should you turn it on? On a phone, usually not — handheld mode is the safer default and runs cooler. Turn it on if you play on a tablet, a TV box, or with active cooling, or if a specific game only renders correctly in docked mode. Expect more heat and battery drain; see our lag and stutter fixes if things get hot.

Resolution Scale

What it is: A multiplier on the game’s internal rendering resolution. 1x is roughly the native target, 0.75x renders lighter, 2x and above renders sharper.

What to use: Start at 1x. If a 3D game stutters, dropping to 0.75x is commonly reported as the single biggest frame-rate lever on weaker GPUs. Only raise the scale on a flagship chip (Snapdragon 8 Gen 2 or better) with a light game — and watch thermals.

VSync

What it is: Synchronizes rendered frames with your screen’s refresh rate. On: less screen tearing and steadier pacing. Off: potentially lower input latency, but tearing and uneven pacing may appear.

What to use: Leave it on unless you notice tearing-free but “laggy-feeling” input, in which case try turning it off for that game.

Threaded Rendering (added in 2.1.0-pr.1)

What it is: Spreads rendering work across multiple CPU threads. Normally this means better performance.

When to turn it OFF: The 2.1.0-pr.1 release notes explicitly added this toggle because disabling threaded rendering fixes crashes in some games. Keep it on by default; if a specific game crashes on boot or shows broken graphics, turning it off is one of the first troubleshooting steps to try — at the cost of some performance. More crash fixes live in our crashing guide.

NCE (Native Code Execution)

What it is: Runs game code more directly on your phone’s CPU instead of translating it first. On strong chips this can be faster.

What to use: Leave it at the default. It is a compatibility trade-off: some games behave worse with it enabled. Only toggle it per-game if you are chasing a specific issue.

Disk Shader Cache

What it is: When a game draws something new, its shaders must be compiled — that compilation hitch is the classic “first-time stutter.” The disk shader cache stores compiled shaders on your phone, so areas you have already visited stutter less on repeat visits.

What to use: Keep it enabled. If a game shows persistent graphical glitches right after an emulator or game update, clear the cache once and let it rebuild naturally as you play.

Force Maximum Clocks

What it is: Prevents your phone from downclocking its CPU/GPU to save power while emulating.

What to use: Helpful for demanding games in shorter sessions — performance stays steadier instead of sagging as the phone tries to save battery. The trade-off is real: more heat and faster battery drain. Do not combine it with charging in a hot room unless you enjoy thermal throttling.

ASTC Texture Recompression

What it is: Recompresses game textures into a phone-friendly format, saving video memory and potentially reducing stutters on memory-tight devices.

Note: Availability varies by build. If you do not see this option, your build handles textures automatically and there is nothing to configure.

Settings Cheat Sheet

Frequently Asked Questions

Will higher resolution make every game look better?

Not necessarily. Raising the scale sharpens the image but costs GPU power — on a mid-range phone it usually just turns a smooth game into a stuttery one. Resolution helps most in light or 2D games.

Why does my game stutter only the first time I enter an area?

That is shader compilation. With Disk Shader Cache enabled, the stutter should fade as the cache builds up over your first hour or so of play.

Should I copy someone’s settings from YouTube?

Use them as a starting point, not gospel. Settings interact with your exact chip, driver, game version, and emulator build — what works on one phone may not on yours. Change one thing at a time.

Do I need a Turnip driver for these settings to matter?

The settings work with any driver, but on Snapdragon phones a current Turnip driver (see our driver guide) often matters more than any single setting.

The game was fine yesterday and broken today — what changed?

Usually an emulator update, a game update, or a stale shader cache. Clear the shader cache once, and check our troubleshooting hub.

Where are per-game settings?

Kenji-NX lets you tune settings per game so a fix for one title does not affect the rest. Use per-game settings for problem titles and keep global defaults sane.

Beyond just running games, Kenji-NX includes built-in tools for cheats, mods, and Amiibo emulation. The 2.1.0 pre-releases added a proper Cheat Manager and Mod Manager, and 2.1.0-pr.2 fixed cheats not working at all. This guide covers what each tool does and how to use them.

Cheat Manager

Kenji-NX 2.1.0-pr.1 added a Cheat Manager with an import function: you can import cheat files for a game and toggle individual cheats on or off. If you tried cheats on pr.1 and nothing happened, that was a real bug — 2.1.0-pr.2 fixed cheats not working, so update before troubleshooting further.

Cheats are game- and version-specific: a cheat file made for v1.0 of a game usually won’t work on v1.2, because the memory addresses shift between updates. When cheats fail silently, a version mismatch is the most common cause — match your cheat file to your exact game version.

Mod Manager

The same update added a Mod Manager with import and delete functions. Mods for Switch games typically come as layered filesystem patches (the same format the Switch homebrew community uses), and Kenji-NX loads them per-game. Practical notes:

• Only enable the mods you actually need — stacking many mods is a classic source of mysterious crashes.
• Graphics mods (resolution, 60fps patches) interact with the GPU driver; if a modded game suddenly renders wrong, test with mods disabled before blaming the emulator.
• Keep mods matched to your game version, same as cheats.

Amiibo Quickslots

A handy lesser-known feature: on the Kenji-NX home screen, tap the folder button in the bottom-right to load up to 5 Amiibo files into quickslots, then press the Overlay button in-game to trigger quickslots 1–5. It emulates tapping an Amiibo without owning the physical figure — useful for games that lock content behind Amiibo scans. You’ll need your own Amiibo data files; the emulator just provides the mechanism.

When Cheats or Mods Break a Game

• Game crashes only with cheats on: wrong cheat version for your game build — find cheats matching your exact version.
• Nothing happens with cheats enabled: make sure you’re on 2.1.0-pr.2 or newer (pr.1 had the cheats-not-working bug).
• Weird graphics with mods: disable mods first, then re-enable one at a time; graphics mods and custom Turnip drivers can conflict — see our driver guide.
• Game won’t boot after adding files: remove the recently added mod/cheat files and try again before assuming the emulator is broken.

New to the emulator overall? Start with our setup guide to get the basics right first — most “cheats don’t work” reports turn out to be setup issues, not cheat issues.

Frequently Asked Questions

How do I enable cheats in Kenji-NX?

Use the built-in Cheat Manager (added in 2.1.0-pr.1) to import a cheat file for your game, then toggle the cheats you want. Make sure you’re on 2.1.0-pr.2 or newer, where non-working cheats were fixed.

Why aren’t my cheats working?

The two usual causes: you’re on pr.1 (which had the bug — update), or the cheat file doesn’t match your exact game version.

Does Kenji-NX support mods?

Yes — the Mod Manager imports and deletes per-game mods in the standard layered-filesystem format.

Can Kenji-NX emulate Amiibo?

Yes. Load up to 5 Amiibo files into quickslots from the home screen folder button, then trigger them with the in-game Overlay button.

Kenji-NX doesn’t come with games, and neither does this site — and that’s by design. The legal way to get games into any Switch emulator is to dump them from cartridges and consoles you own. This guide explains the legitimate path, how to point Kenji-NX at your game folder, and how the built-in DLC/update handling works. We do not provide ROM downloads, and neither should any site you trust.

The Only Legitimate Source: Your Own Switch and Cartridges

To get playable game files you need:

1. A Nintendo Switch you own that can run homebrew (an unpatched early model or a modded console).
2. The game cartridge or digital copy you purchased, dumped with a homebrew dumping tool on that console.
3. Your console’s keys and firmware, dumped with Lockpick_RCM — see our firmware & keys guide.

Downloading game files (ROMs), keys, or firmware from the internet is piracy even if you own the game on paper — ownership of a cartridge doesn’t grant a download right from pirate sites. Nintendo has sued over exactly this pipeline before, so keep your setup clean.

Setting Up Your Game Folder

1. Create a folder on your phone (or SD card) for your dumped games, e.g. Switch/Games.
2. Copy your dumped game files into it. Kenji-NX reads the standard Switch formats (XCI cartridge dumps, NSP digital dumps).
3. In Kenji-NX, open Settings → Game Directories and add the folder. Your games will appear in the library.
4. If a game doesn’t appear, double-check that your prod.keys are installed — undecryptable files are silently skipped.

DLC and Updates: Automatic Loading

Since 2.1.0-pr.1, Kenji-NX can automatically load title updates and DLC from a selected folder — point it at the folder once and updates apply themselves. Dump update/DLC files from your own console the same way you dump base games, drop them in, and the emulator handles the rest. This is a big quality-of-life improvement over manually managing update files per game.

Storage: Games Are Big

Switch games commonly run from a few GB to 30GB+. A 128GB phone fills up fast once you add DLC and updates, which is why most serious players run a large microSD card — see our microSD guide for what to buy. Keep your saves backed up too: Kenji-NX includes a save manager with .zip import/export (added in 2.1.0-pr.1), so exporting before an update or phone swap takes seconds.

Frequently Asked Questions

Where can I download Kenji-NX ROMs?

Nowhere legitimate. This site does not host or link to ROM downloads. Dump games from cartridges you own using a homebrew-capable Switch.

What file formats does Kenji-NX support?

XCI (cartridge dumps) and NSP (digital dumps), plus their update/DLC counterparts, dumped from your own console.

Do I need keys to add games?

Yes — without your console’s prod.keys, dumped files can’t be decrypted and won’t show up in the library.

How do updates and DLC work?

Dump them from your own console, put them in the folder you selected for auto-loading (2.1.0-pr.1+), and Kenji-NX applies them automatically.

Disclosure: this page contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you.

Kenji-NX on a phone is great; Kenji-NX on a 55-inch TV with a real controller is a different hobby. Android TV boxes and sticks can run it, but the setup has quirks — sideloading, controller pairing, and honest performance expectations. Here’s the full couch setup.

Will it run on your TV box?

Same rules as phones, stricter consequences. Check before you invest time:

Blunt truth: most cheap TV sticks ship with weak chips and 2–4 GB of RAM — they will not run Switch games. A used flagship phone plugged into the TV often outperforms a budget box. And like phones, only Snapdragon (Adreno) boxes can use Turnip drivers; see our driver guide.

Installing the APK on Android TV

1. Download the Standard APK from our download page on your phone or PC.
2. Send it to the box: USB stick, or a cloud drive / local file-share app both work.
3. On the TV box, allow Install unknown apps for your file manager, then install.
4. Copy your prod.keys and firmware over the same way — dumped from your own Switch, as always. See the Android setup guide; the steps are identical once the APK is installed.

Pair a controller (non-negotiable)

Touch controls don’t exist on a TV. Pair an Xbox, PlayStation, or 8BitDo controller over Bluetooth in the Android TV settings, then map it in Kenji-NX’s input settings. Our controller roundup covers the best options for emulator play.

Display settings for the big screen

• Resolution scaling: start at 1x handheld-equivalent and raise it only if your box holds full speed — the TV upscales anyway, so chasing high internal resolution is the fastest way to overheat a small box.
• Turn off frame-pacing killers: background apps, battery savers, and “AI upscaling” modes on the TV itself (game mode on!).
• Wired network: irrelevant for emulation itself, but if you stream or transfer files to the box, Ethernet beats TV-box Wi-Fi every time.

Phone-to-TV the wired way

No TV box? A flagship phone plus a USB-C to HDMI cable turns your daily driver into a docked console — often faster than any dedicated box you can buy. Plug in, mirror or Dex-style desktop out, pair a controller, done.

Honest performance expectations

Even a good box thermal-throttles faster than a phone — small chassis, no vapor chamber. Expect lighter titles (indies, older ports) to run beautifully and heavy AAA games to need modest settings. If a game stutters, drop resolution scaling before touching anything else; our lag troubleshooting page walks through the rest.

Frequently asked questions

Can I install Kenji-NX from the Google Play Store on Android TV?

No — Kenji-NX isn’t on Google Play. Sideload the APK as described above; it’s the same build phones use.

Do I need a VPN or account to use it on TV?

No. It works offline once keys, firmware, and games are in place.

Which controller works best on Android TV?

Any modern Bluetooth controller — Xbox Wireless, DualSense, or 8BitDo Pro 2 are all safe picks. See our controller guide for the full comparison.

Why does my TV box lag when my phone doesn’t?

Usually thermals or a weaker SoC. TV boxes throttle aggressively; lower the resolution scale and make sure the box isn’t baking inside a closed cabinet.

Touch controls get you started, but most Switch games were designed for real sticks and buttons. The good news: Kenji-NX works with standard Bluetooth controllers — PS5 DualSense, Xbox Wireless Controller, 8BitDo pads, and most others pair like any Bluetooth accessory and show up in the emulator’s input settings. This guide walks through pairing, configuration, and the virtual-controller options added in recent versions.

Step 1: Pair the Controller With Your Phone

1. Put the controller in pairing mode:
   • PS5 DualSense: hold the PS button + Create button until the light bar blinks.
   • Xbox Wireless Controller: hold the Pair button on top until the Xbox button blinks fast.
   • 8BitDo (e.g. Pro 2): hold Start + the mode button for your platform (usually Start+X for Android/X-input) until the LEDs blink.
2. On your phone, go to Settings → Bluetooth and tap the controller’s name to pair.
3. Open Kenji-NX and go to Settings → Input. Your controller should appear in the device list — select it as Player 1.

Step 2: Configure Buttons in Kenji-NX

In the input settings, tap each Switch button (A, B, X, Y, shoulders, sticks) and press the corresponding button on your physical controller to bind it. Take an extra minute to bind the stick click (L3/R3) and the +/− buttons — games that need them become unplayable without them, and it’s annoying to discover that mid-boss-fight.

Kenji-NX 2.1.0-pr.1 fixed Xbox controllers’ L2/R2 triggers not registering, so if your triggers did nothing on an older build, updating solves it.

Step 3: Tune the Virtual Controller (for Touch Play)

If you sometimes play without a physical controller, the 2.1.0 pre-releases improved the on-screen controls noticeably: there is a controller scale slider and 6 selectable controller layouts in Input Settings. Larger buttons with a transparent layout work well on big phones; compact layouts suit smaller screens. These settings are per-device, so your touch layout won’t mess with your Bluetooth bindings.

Troubleshooting Controller Issues

• Controller pairs with the phone but not detected in Kenji-NX: force-close and reopen the emulator after pairing; some controllers only enumerate on app start.
• Buttons mapped wrong (A/B swapped): Nintendo’s layout is reversed vs Xbox — rebind manually rather than fighting muscle memory, or just learn the Nintendo layout.
• Input lag: make sure no other app is holding the Bluetooth connection, and disable battery optimization for Kenji-NX so the Emulation Service (added in 2.1.0-pr.1) keeps the game alive in the background.
• Xbox L2/R2 do nothing: update to 2.1.0-pr.1 or newer, where this was fixed.

Still deciding which controller to buy for phone gaming? Our best controllers for Kenji-NX guide compares the top telescopic and Bluetooth options. And if your games stutter even with a controller connected, the issue is probably performance, not input — check our Turnip driver guide.

Frequently Asked Questions

Does Kenji-NX support PS5 and Xbox controllers?

Yes. Any standard Bluetooth controller that pairs with your Android phone — DualSense, Xbox Wireless Controller, 8BitDo, and similar — works with Kenji-NX through the input settings.

Do I need a controller to use Kenji-NX?

No. Kenji-NX includes on-screen touch controls with multiple layouts and a scale slider. A physical controller is strongly recommended for action games, but many slower-paced games are fine on touch.

Why are my Xbox triggers not working?

That was a known bug fixed in 2.1.0-pr.1. Update the emulator and re-bind L2/R2 in the input settings.

Can I use two controllers for multiplayer?

Kenji-NX inherits Ryujinx’s input framework, which supports multiple controllers. Local multiplayer support varies by game — check the specific title’s compatibility.

Updating Kenji-NX is easy — losing a 60-hour save file is not. Follow this order and your games, saves, and settings survive every update: back up first, install second, verify third.

Step 1 — Back up your saves (2 minutes)

Kenji-NX ships a built-in Save Manager (added in 2.1.0-pr.1). Open it, select your games, and export saves as .zip. Copy that .zip somewhere off the phone — cloud storage, a PC, anywhere that survives an app reinstall. This is the step everyone skips and later regrets.

Step 2 — Download the new APK

Grab the latest build from our download page. If you’re unsure which variant to pick, Standard is the safe default; check the changelog to see what’s new first. Verify the SHA-256 hash after downloading, as described on the download page.

Step 3 — Install over the old version

Install the APK normally — Android updates the app in place and your data stays. One exception: the Optimized variant installs as a separate package, so it appears as a second app rather than replacing Standard. That’s intentional (it’s meant for side-by-side testing), but it means saves don’t carry over automatically — which is exactly why Step 1 exists.

Step 4 — Verify, then restore if needed

Launch the updated app and boot a game. If your saves are there, you’re done — delete the backup .zip whenever you like. If anything is missing, use the Save Manager’s import function to bring the .zip back in.

If something breaks after updating

• One game crashes, others fine: try toggling Threaded Rendering off for that title (2.1.0-pr.1 added this switch precisely for crash-prone games).
• Everything was fine before: keep the old APK file. You can reinstall the previous version over the new one to roll back, then report the regression.
• Driver weirdness: re-check your Turnip driver — see our Turnip driver guide. Major version jumps sometimes want a fresh driver.

Frequently asked questions

Will updating delete my games or saves?

Installing a new APK over the old one preserves app data. The risk is reinstalling from scratch or switching to the separately-packaged Optimized variant — export a .zip backup first and the risk disappears.

Do I need to re-enter my keys and firmware after updating?

No. Keys and firmware live in app data, which survives an in-place update. Only a full uninstall wipes them.

Should I update to every pre-release?

Pre-releases like pr.2 are where the fixes land, and the developer asks users to test them. If your setup is stable and you’re mid-playthrough, it’s reasonable to wait — just read the changelog first.

The new version runs worse. What now?

Roll back by reinstalling your saved older APK, keep your .zip save backup handy, and check whether a setting (e.g. threaded rendering) or your Turnip driver needs adjusting for the new build.

Setting up Kenji-NX is a six-step job, and most of the confusion comes from step order: people install games before keys, or hunt for drivers before the emulator itself. Follow the sequence below and you will go from a fresh phone to a booting game with the minimum of backtracking. This guide assumes you own a Nintendo Switch — you will need it for the keys and firmware steps, and there is no legitimate way around that.

Before you start: the checklist

Kenji-NX is a demanding app. You will have a dramatically better time if your phone meets these baselines:

• Android 11 or newer (Android 12+ recommended), 64-bit (ARM64) — which is virtually every phone sold in the last several years.
• 8 GB of RAM minimum; 12 GB or more is noticeably better for larger titles.
• A Snapdragon chip is strongly recommended. Only Snapdragon’s Adreno GPUs can use Turnip custom drivers (see our Turnip driver guide), and the driver ecosystem around Adreno is years ahead of Mali and Xclipse.
• A few gigabytes of free storage for the app, firmware, and your game dumps.
• Your own Nintendo Switch, for dumping prod.keys and firmware. Downloaded key packs are piracy — our firmware & keys guide explains why and how dumping works.

The setup, step by step

Step 1 — Install the APK

Download the latest Kenji-NX APK from our download page and install it. Android will ask you to allow installs from your browser or file manager the first time — that is normal for apps installed outside the Play Store. If you get an “app not installed / package appears invalid” error, the download was almost certainly truncated: delete it and download again rather than hunting for settings to tweak.

Step 2 — Add your prod.keys

Kenji-NX ships without keys and cannot generate them. Dump prod.keys from your own Switch (the overview is in our firmware & keys guide), copy the file to your phone, and use Kenji-NX’s built-in keys installer in the app settings to load it. Do not download keys from the internet — they are pirated cryptographic material and a common malware vector.

Step 3 — Install the firmware

Same story: firmware must be dumped from your own console. Use the emulator’s built-in firmware install option and point it at your dumped firmware files. Without firmware, games that pass the keys check will still fail to boot.

Step 4 — Point Kenji-NX at your game folder

Create a folder on your phone for your game dumps — dumps of games you own — and tell Kenji-NX where it is in the settings. Keep the folder organized from day one; a flat folder with dozens of dumps becomes unmanageable fast, and updates/DLC for a game should live next to that game’s dump.

Step 5 — Install a Turnip driver (Snapdragon only)

If your phone has a Snapdragon chip, this step is close to mandatory for good results. Load a Turnip driver build matched to your Adreno generation through the emulator’s driver install option. Dimensity, Exynos, and Tensor phones skip this step entirely — Turnip is Adreno-only. Full details in our Turnip driver guide.

Step 6 — First boot and basic settings

Launch a game and start conservative: leave resolution at handheld-equivalent levels first, and only raise it once you know your chip handles the game smoothly. Test one or two games before changing a dozen settings at once — that way, when something breaks, you know which change did it.

Sensible starting settings

There is no universal “best settings” file, because the right values depend on your chip, your driver, and the specific game. The principles that work for almost everyone: start at stock/handheld resolution and increase in small steps; prefer the Turnip driver on Adreno hardware; give the emulator a fresh restart after changing drivers or firmware rather than hot-swapping mid-session; and when a game misbehaves, check the driver and the dump’s integrity before assuming the emulator is at fault. Most “Kenji-NX is broken” reports turn out to be a bad driver build or a corrupt dump.

Frequently asked questions

Kenji-NX asks for keys on every launch. Did I do something wrong?

The keys probably did not install correctly — re-copy your dumped prod.keys and reinstall it through the app’s keys installer. Keys and firmware should come from the same console.

The game boots to a black screen.

The usual suspects, in order: missing firmware, a corrupt game dump, or a GPU driver problem. Verify firmware is installed, re-check the dump, and try the stock driver if you are on a custom Turnip build.

Where are my save files?

Kenji-NX stores saves in its own app data area, separate from your game dumps. Back up that data before switching phones or reinstalling — saves do not live inside the game folder.

Can I use a controller?

Yes — Android controllers, including telescopic phone gamepads, work with Kenji-NX, and they transform the experience compared to touch controls. Pair the controller over Bluetooth before launching the game.

How do I move everything to a new phone?

Reinstall the APK, then migrate three things: your dumped keys, your firmware files, and your save data. Your game dumps can simply be re-copied. Never “migrate” by downloading someone else’s keys.

Next steps: start with the APK on our Kenji-NX download page, read the firmware & prod.keys guide before touching keys, and check the Turnip driver guide if you are on Snapdragon. Project background: Kenji-NX home page.