DLSS DLSS 5 mod delivers up to 40% FPS boost in Cyberpunk 2077 and The Witcher 3 GAMES Cosplayer Lidiya Lepechkina transforms into Six from Little Nightmares in dark Maw photoshoot STEAM Total War: Shogun 2 Complete Edition hits 18% positive on Steam after replacing original game XBOX SERIES X Playground Games admits it hasn’t been talking with Forza Horizon 6 players as much as it could be GAMES Marvel Rivals raises penalties for toxic chat, adds new policy page PC HARDWARE HP OmniBook 3 16 starts at $599 with Snapdragon C and up to 20 hours battery life TABLETS Blackview Zeno 6 tablet lists Android 17, 94.7% screen-to-body ratio NINTENDO Zelda: Tears of the Kingdom Mac port hits 90 fps, beating Switch 2 and PC rivals AMD Lenovo Legion 27Q-20 monitor launches in China for around $171 with 320Hz refresh rate GAMES CarX Rally Teaser Reveals Advanced PC Damage Physics and Two-Wheel Driving GAMES Starward Industries reveals Into the Fire gameplay trailer, targets 2026 early access GAMES Escape from Tarkov celebrates 12th anniversary with free consumable gift pack STEAM Unplayable Five Nights at Freddy’s clone Wane’s removed from Steam, given away for free GAMES Zenless Zone Zero 3.3 update adds Phoenix, an S-rank character with a resurrection passive

GammaOS Nano Brings PS3-Style XMB Interface to Retro Handhelds

Lena Fischer 2 min read

GammaOS Nano brings a PS3- style XMB interface and unified emulation to the TrimUI Brick, Anbernic RG DS, and RG Rotate using reversed PS3 firmware components.

GammaOS Nano Brings PS3-Style XMB Interface to Retro Handhelds
ANDROID HANDHELDS

Gamma has released early details on GammaOS Nano, a custom firmware designed to extend the lifespan of budget retro handhelds. This update matters because it replaces the stock operating systems on devices like the TrimUI Brick with a more versatile platform. Users who own these specific Android-based consoles can now access a wider range of emulation cores and standalone applications. The release signals a shift toward more powerful software solutions for entry-level gaming hardware.

Custom firmware replaces stock OS on TrimUI Brick with XMB navigation

The new firmware targets three specific handheld models: the TrimUI Brick, the Anbernic RG DS, and the RG Rotate. Gamma describes GammaOS Nano as a completely new system rather than a simple skin or modification of existing software. The developer confirmed that the firmware is not RetroArch itself, though it retains the ability to launch RetroArch cores. This distinction allows the system to manage both core-based emulators and standalone game files within a unified environment.

  • Compatibility: TrimUI Brick, Anbernic RG DS, RG Rotate
  • Architecture: Custom firmware using components from reversed engineered PS3 Firmware
  • Interface: XMB (Cross Media Bar)

Under the hood, GammaOS Nano relies on components extracted from reversed engineered PlayStation 3 firmware. This technical foundation supports the implementation of the XMB, or Cross Media Bar, interface. The interface provides a familiar horizontal navigation structure for browsing media and games. Gamma has also published a web demo of the XMB interface to allow users to preview the visual layout before installation.

The developer stated that the project is nearing completion and will arrive soon. Initial testing and visual captures were performed on the TrimUI Brick hardware. The firmware aims to unify the user experience across different handheld manufacturers by standardizing the interface and core management. Buyers looking to maximize the utility of their existing TrimUI or Anbernic devices should monitor for the final release.

We looked at the last gammaos nano update when we covered the TrimUI Brick Pro and Hammer Pro U Handhelds Teased with and Android Specs. The previous iteration focused on balance and stability improvements for the same hardware base. The upcoming Nano release builds on that foundation by introducing a new system architecture and interface.

Source: RetroHandhelds

Linux

Related stories