How to install NextUI on TRIMUI Brick Pro

1. System Overview & Key Features

NextUI strips away unnecessary bloated features found in heavier operating systems, giving you direct access to your game collection with minimal latency. Built with modularity in mind, NextUI relies on independent "Paks" to run individual emulators and tools.

Key highlights of NextUI on the TRIMUI Brick Pro include:

• Instant Booting: Near-instantaneous cold boot to launcher navigation.
• Low Overhead: Optimized CPU/RAM usage ensuring maximum resources go to RetroArch and stand-alone emulators.
• Clean Customization: Native support for customizable themes, grid layouts, and custom system audio.
• Seamless State Saving: Integrated auto-save and auto-resume functionalities across all compatible platforms.

2. Prerequisites & Hardware Requirements

Before proceeding, ensure you have the required hardware components and software files ready:

3. Preparing Your MicroSD Card

Proper MicroSD formatting is critical for the TRIMUI Brick Pro hardware to correctly detect NextUI files at boot.

1. Insert your MicroSD card into your computer using a card reader.
2. Format the card to FAT32 (for cards 32GB or smaller) or exFAT (for cards 64GB and larger).
   • Windows Users: Use tools like Rufus or GUIFormat if standard tools fail to offer FAT32/exFAT options.
   • macOS Users: Use Disk Utility formatted as "MS-DOS (FAT)" or "exFAT" with "Master Boot Record".
3. Ensure the drive volume label is clear (e.g., NEXTUI or TRIMUI) and contains no special characters.

4. Step-by-Step Installation Guide

Follow these exact steps to perform a fresh installation of NextUI on your device:

1. Extract the Release Package: Unzip the downloaded NextUI-vX.X.X.zip package on your computer.
2. Transfer Root Contents: Copy all files and folders directly from the extracted directory into the root of your MicroSD card.

   [SD Card Root Directory]
   ├── Bios/
   ├── Emus/
   ├── Roms/
   ├── Themes/
   └── boot.sh (or system executable files)

3. Add BIOS Files: Place your legal system BIOS files inside the Bios/ directory (e.g., PSX bios files like scph5501.bin).
4. Transfer Game ROMs: Add your game backups into their designated system folders inside Roms/ (e.g., Roms/GBA/, Roms/SNES/).
5. Eject and Insert: Safely eject the card from your computer and insert it into Slot 1 of your TRIMUI Brick Pro.
6. First Power On: Turn on the handheld. NextUI will initialize, create runtime configuration files, and launch into the main menu.

5. Directory Structure & Pak Management

NextUI operates using modular system folders called Paks. Each Pak contains scripts, configurations, and assets needed to launch specific emulators or apps.

Understanding the root layout helps you maintain clean gaming libraries:

• /Bios/ – Holds system firmware files required for emulation platforms (PS1, GBA, Sega CD).
• /Emus/ (or /Paks/) – Contains individual emulator launcher scripts and RetroArch core links.
• /Roms/ – Contains folders corresponding to each gaming platform.
• /Saves/ – Automatically generated folder where all save states and in-game saves are preserved.
• /Themes/ – Stores user interface themes.

6. Post-Installation Configuration & Customization

Once NextUI is up and running, tailor the environment to match your gaming style:

Themes & Visual Layouts

Navigate to Settings > Theme Options to switch between light, dark, and retro minimalist themes. You can download community themes and drop the theme folder directly into /Themes/ on your SD card.

Hotkeys & Navigation Controls

NextUI comes with standardized in-game hotkey shortcuts:

• Menu + R1: Save State
• Menu + L1: Load State
• Menu + Start: Exit Game to NextUI Launcher
• Menu + X: Open RetroArch Quick Menu

7. Troubleshooting & FAQ