Anbernic RG35XX Pro Setup Guide

by | Jun 11, 2025 | Features, Guide | 0 comments

Anbernic RG35XX Pro - Ports on KNULLI - 1

We have to admit, between the RG34XXSP and the forthcoming RG Slide, it was a bit odd to see Anbernic release the RG35XX Pro. Especially when you consider that it’s basically just a BatleXP G350 with different colors and an H700 chip. That being said, this might be the best handheld for beginners, as it has all of the features you would want, along with a few extras. With that in mind, if you want to get the “lay of the land,” here’s our RG35XX Pro Setup Guide to help get you started.

Table of Contents

Where to Buy

Anbernic RG35XX Pro Specs

Anbernic RG35XX Pro First Impressions

  • Display: 3.5-inch IPS, 640 x 480
  • Processor: Allwinner H700
  • GPU: Mali-G31 MP2
  • RAM: 1GB LPDDR4
  • Internal Storage: ❌
  • External Storage: 2x microSD Cards (up to 512GB)
  • Battery: 3200mAh
  • Charging: 5V/1.5A
  • Connectivity: Wi-Fi, Bluetooth 4.2
  • Ports: 1x USB-C, mini HDMI, 3.5mm Audio Jack, 2x microSD Card Slots
  • Controls: ABXY, D-pad, Dual Thumbsticks, Menu, Start, Select, L1/R1, L2/R2, Volume, Power, Reset
  • Dimensions: 128 x 81 x 22mm
  • Weight: 191 grams
  • Colors: Transparent Teal, White, Black

Recommended Accessories

Game Room or RA Game?

Anbernic RG35XX Pro - Game Room on Stock Firmware

When it comes to emulation on retro handhelds, performance varies depending on the platform. This is why you see things like Game Room or RA Game on the RG35XX Pro.

But which should you choose?

To put it simply, Game Room is where all of the standalone emulators, such as PPSSPP for PSP or DraStic for Nintendo DS. Meanwhile, RA Game is where you’ll find all of the available RetroArch cores.

As for which one to choose, it depends on which system you’re trying to play. For the most part, RetroArch is the answer, but when it comes to those more powerful systems, then Game Room is the way to go.

How Can I Add a Second microSD Card?

  1. Make sure that the microSD card that you want to use is already formatted.
  2. Turn off your RG.
  3. Insert the microSD card into the slot on the right.
  4. Turn the RG35XX Pro on again.
  5. Wait for it to finish booting.
  6. Turn off the RG35XX Pro.
  7. Remove the second microSD card and connect it to your computer.
  8. Drag and drop any ROMs or game files into their corresponding folders.

How to Update Stock Firmware

Anbernic_RG35XX_Stock_OS_Box

Stock OS is no longer a compromise

  1. Back up all of the existing files on your RG35XX Pro, such as ROMs, BIOS, Saves, etc.
  2. Download the latest version from Anbernic’s website.
  3. Extract the downloaded ZIP file.
  4. With your RG35XX Pro turned off, remove the microSD card and connect it to your PC.
  5. Use an app like Rufus or Balena Etcher to flash the updated firmware to your microSD card.
  6. Once complete, remove the microSD card, put it in your RG35XX Pro, and turn it on.

Stock Firmware Settings

    • Pre-installed Apps
      • Bezel Custom Manager
      • Clock
      • Image Browser
      • Modify System Settings
      • Modify System Tools
      • Temporary SAMBA Server
      • Temporary SSH Server
      • Tiny Scraper
    • Change RetroArch Settings
      • Settings > RetroArch Settings > Start RetroArch
    • Network Settings
      • Settings > Network Settings
        • Restart SSH Service
        • Hotspot
        • Bluetooth
        • WiFi
        • Moonlight
    • Customize
      • Settings > Icon Settings
      • Settings > Background Settings
    • Button Sound
      • Settings > Button Sound > Off

Custom Firmware

RG35XX Pro and RG34XXSP

It shouldn’t come as too much of a surprise, but there are already a few custom firmware solutions available for the RG35XX Pro. That’s one of the benefits of Anbernic sticking with the H700 chip; however, you might run into a few quirks given the dual joysticks.

What You’ll Need

  • Anbernic RG35XX Pro
  • microSD card
  • Windows, macOS, or Linux PC
  • Package Manager (7-Zip for Windows)
  • Wi-Fi connection
    • Mostly used for on-device scraping of metadata and artwork, updates, or easier downloading of PortMaster titles.

KNULLI

Anbernic RG35XX Pro - Ports on KNULLI - 2

Editor’s Note: At the time of this writing, there is not a finalized build of KNULLI available for the RG35XX Pro, as it’s currently in testing. You can gain access to these builds by becoming a supporter, following the steps listed on the KNULLI website.

  1. Format a microSD card so that you’re starting with a blank slate.
  2. Download the latest available build of KNULLi. 
  3. Use Balena Etcher, Win32 Imager, or Rufus to flash the KNULLI firmware to the microSD card.
  4. Safely eject the card from your computer and insert it into your RG35XX Pro.
  5. Wait for the initial startup process to finish.
  6. Enjoy!

KNULLI Releases

muOS

Anbernic RG35XX Pro - muOS Version

Editor’s Note: There is not yet an official build of muOS available. We will update this guide after an official build is released.

  1. Format a microSD card so that you’re starting with a blank slate.
  2. Download the latest build of muOS for the RG35XXH. 
  3. Use Win32 Imager or Rufus to flash the muOS firmware to the microSD card.
  4. Safely eject the card from your computer and insert it into your RG35XX Pro.
  5. Turn it on and wait for the initial startup process to finish.
  6. Enjoy!

muOS Releases

ROCKNIX

Anbernic RG35XX Pro Setup Guide - ROCKNIX Boot Logo

Editor’s Note: There is not yet an official build of ROCKNIX available. We will update this guide after an official build is released.

  1. Make sure you’re starting with a formatted microSD card.
  2. Download the ROCKNIX Image Burner to your Windows PC.
  3. Once installed, connect the microSD card to your computer.
  4. Pick the following options:
    • Select Manufacturer: Anbernic
    • Select Device: RG35XX H
    • Target Drive: [Your microSD Card]
  5. Click the Write Image to Drive button.
  6. Wait until ROCKNIX is finished being flashed to the microSD card.
  7. Safely eject the card from your computer and insert it into the RG35XX Pro.
  8. Boot up your handheld, and get started!

ROCKNIX Image BurnerROCKNIX Releases

BIOS and ROM Files

Gran Turismo on RG35XX Pro

Where Do I Put BIOS Files and ROMs?

  • Stock Firmware
    • BIOS: mnt/mmc/bios
    • ROMs: mnt/mmc/Roms/[console]
  • KNULLI
    • BIOS: userdata/bios
    • ROMs: userdata/roms/[console]
  • muOS
    • BIOS: SD1/MUOS/bios
    • ROMs: SD1/ROMS
  • ROCKNIX
    • BIOS: roms/bios
    • ROMs:
      • Ext 4 (External): storage/games-external/roms
      • Ext 4 (Internal): storage/games-internal/roms
      • exFAT/FAT32: /storage/roms

Where Are Save Files?

  • Stock Firmware
    • Standalone Emulators: mnt/mmc/save
    • RetroArch Saves: mnt/mmc/saves_RA
    • RetroArch Save States: mnt/mmc/states_RA
  • KNULLI
    • userdata/saves/[console]
  • muOS
    • MUOS/save/file/[core]
    • MUOS/save/state/[core]
  • ROCKNIX
    • /storage/roms/saves/
    • /storage/roms/savestates

More RG35XX Pro From RH

Website

YouTube

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