RetroCompass
RetroCompass

TrimUI Smart Pro S — Reset

Quick answer

Button combo

(unresponsive) hold POWER ~15s·(re-flash) VOL-+POWER until green bar

Steps

  1. 1If the device is frozen, hold POWER for about 15 seconds to force it off, then power on again.
  2. 2For settings issues, open Setting → System and use the available reset / calibration options.
  3. 3To rebuild the system, re-flash the latest trimui_tg5050 firmware from a FAT32 microSD card.
  4. 4Insert the card and hold VOL- + POWER until the green progress bar appears, then wait for it to finish.
  5. 5Back up your microSD card first, since re-flashing can overwrite system data.
Last verified: 2026-06-20Source: trimui.com

For an unresponsive Smart Pro S, hold POWER for roughly 15 seconds to force a shutdown, then boot again. Minor problems can be cleared from Setting → System (for example Calibrate Joystick). To fully rebuild the stock system, re-flash the latest trimui_tg5050 firmware by booting with VOL- + POWER until the green progress bar appears. As a 2025 device, TrimUI has not widely documented a dedicated one-combo factory reset, so treat re-flashing the official firmware as the reset path and back up your SD card first. (DRAFT: confirm the exact in-OS reset wording against current firmware.)

FAQ

How do I force-restart a frozen Smart Pro S?
Hold POWER for about 15 seconds until it powers off, then press POWER to boot again. A normal power cycle does not erase your games.
Is there a factory-reset button combo?
TrimUI has not widely documented a single factory-reset combo for the TG5050. To reset to stock, re-flash the latest trimui_tg5050 firmware (VOL- + POWER until the green bar). Back up your microSD card first.

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