RetroCompass
RetroCompass

Smart Pro — Firmware update

Quick answer

Button combo

VOL-+POWER(hold until green bar)

Steps

  1. 1Download the latest trimui_tg5040 firmware from github.com/trimui/firmware_smartpro/releases.
  2. 2Format a microSD (TF) card as FAT32 and copy the trimui_tg5040.awimg file to the card root.
  3. 3Insert the microSD card into the powered-off Smart Pro.
  4. 4Hold VOL- + POWER together until a green progress bar appears, then release both.
  5. 5Wait for the flash to finish; the device reboots into TrimUI OS automatically.
Last verified: 2026-06-20Source: github.com

Official Smart Pro (TG5040) firmware ships as a trimui_tg5040.awimg image flashed from a FAT32 microSD card. Place the .awimg at the card root, then boot while holding VOL- + POWER to trigger the green-bar update. The latest stock release is 1.1.1 (2025-11-28). The same card can also carry the base_package (RetroArch and Emus folders) so stock apps are restored after flashing.

FAQ

Which firmware file is for the Smart Pro?
Use the file named trimui_tg5040.awimg — TG5040 is the Smart Pro. TG5050 is the newer Smart Pro S, so do not mix them up.
What card format does the update need?
FAT32. Format the microSD (TF) card as FAT32 and place trimui_tg5040.awimg at the root before booting with VOL- + POWER.

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