1. What is NextUI?

NextUI is a premium, open-source custom firmware (CFW) interface designed specifically for handheld gaming devices. Built on top of the robust RetroArch ecosystem, it replaces the stock menu with a modern, sleek, and highly customizable User Interface (UI).

Key Feature: It focuses on "Visual Excellence" and "Simplicity," making your game library look like a professional digital gallery.

2. Why is NextUI perfect for TRIMUI Brick & Brick Hammer?

NextUI is not just a launcher; it is a meticulously engineered environment that bridges the gap between TRIMUI's premium hardware and the peak performance of the RetroArch core.

1.Optimized for the 1:1 High-Definition Canvas

The TRIMUI Brick Series 720x720 (or higher equivalent) 1:1 screen requires a specific UI logic. As an 1:1 Screen Handheld OS,NextUI utilizes a high-DPI vector asset system, ensuring that typography and icons remain razor-sharp on the Brick's high-density display. The interface respects the square aspect ratio, providing a layout that feels intentional, not just "adapted.

2.Advanced Power & Thermal Management

3.RGB Ambient Sync (Exclusive for TRIMUI Brick/TRIMUI Brick Hammer)

NextUI extends its visual flair to the Brick’s physical hardware. Through the LED Control Module, the system can sync the back-mounted RGB lights with the UI theme colors or even the dominant color of the game art. This creates an immersive "Ambilight" effect that highlights the industrial aesthetic of the TRIMUI Brick Hammer metal chassis.

4.Streamlined Content Management (Next-Gen File System) 

NextUI follows a strict, logical directory structure. It supports multi-format assets and features an automated scraping engine that fetches high-quality box art and metadata. For the Brick user, this means less time managing files on a PC and more time enjoying a curated, professional-grade game library.

3. How to Install NextUI on TRIMUI Handhelds?

Following the official LoveRetro guidelines, here is the simplified process to get NextUI running on your device.

Step 1: Preparation

A high-quality Micro SD card

Download the latest NextUI Image from the >>

Github Repo.

Step 2: Flashing the Image

• Connect your SD card to your PC.(Ensure that the SD card is formatted as a FAT32 or exFAT filesystem, and using the "Master Boot Record" partition scheme.If not, use the specified tools in What you will need to format the card as FAT32/exFAT.)
• Go to the zip file we downloaded from the Github > Right click > Extract All. 
• Inside of that extracted folder, copy all of the contents and then paste it into the SD card. 
• Eject your SD card safely from your computer and insert it back into your device.
• Power on your device. A screen will display stating NextUI is being updated.
• Be patient while it updates. Do not turn off the power to your device during the update.(Your device may turn off after the update is complete.)
• Turn on your device and enjoy the update!

4.Looking for more advanced configurations?

You may access further technical support and community-verified tips at >>Joeysretrohandhelds or >>NextUI.