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RT-900 BT

Build & Customize

Flash firmware or customize your radio directly from the browser. No Windows required.

How it works: The RT-900 BT runs on a Jieli AC695x chip. The firmware (.anc) controls radio behavior. The splash screen, fonts, and skins are separate assets stored in flash — you can customize them without changing firmware.

Stock Firmware

Load Custom Firmware

No file selected

How to Flash

  1. Load a .anc firmware file above
  2. Turn off your radio
  3. Hold PF2 + PF3 (the two buttons below PTT) while turning the power knob on
  4. The screen should show UPDATE...
  5. Connect the K-type programming cable to your radio and computer
  6. Click Flash Firmware and select the serial port
  7. Wait for the flash to complete (~1-2 minutes)