AC-EXO-X-Plus Firmware Release

Release Date : 30 April 2025

Current Version Information :  

      

AC-EXO-X-Plus-TX 

      Main MCU- V1.16

      FPGA- V0.06

AC-EXO-X-Plus-RX 

      MAIN MCU V1.24 

      FPGA- V0.06

Release Notes: 

      - Improved ARC/eARC functionality  

      - Improved CEC exchange TX-RX 

      - Resolved SADs (Short Audio Descriptor) communication RX-TX for ARC 

      - Initial release

Requirements:
- Windows PC
- USB-A to USB-C data cable for direct serial connection
- Firmware FWM file and Uploader (see attachments at the bottom of this page)
- CH340 USB Serial Driver (included in folder attached) 

1. Connect your PC directly to the USB-C ISP/CTRL port on the AC-EXO-X-Plus TX/RX  using the USB-A to USB-C cable. Install the CH340 USB Serial Driver onto your PC. 

2. Right-click on the Windows Start button and select Device Manager.

Then select the Ports (COM & LPT) drop-down menu and locate the port labeled USB-SERIAL CH340 (COMx) to confirm the AC-EXO-X-Plus is connected to the PC.

3. Open the Firmware Uploader V1.25.

Select the correct COM, Baud: 57600, and select the Open button  to open the port.

The Status will now show as Connected in green text with COMx connect success under Messages.

4. Select the Get Version button to see the current firmware version on the AC-EXO-X-Plus TX/RX  (note: screenshot below is only an example and may not display the exact version). 

Note: It is recommended updating each end of kit while isolated or only connect via 12v 3a PSU and USB-C-to USB-A with PC. No fiber or other ports connected with updating.  Typically update TX first then RX.  

5. Select the file button  to load the firmware file. Make sure to select the correct firmware file for the device you are currently updating.

      - AC-EXO-X-PLUS-TX 1.16 FWM

      - AC-EXO-X-PLUS-RX 1.24 FWM

The firmware file will be loaded into the Open Firmware file field with the following information under Messages:

6. Select the Upgrade button to start the firmware update. The loading bar will pause at 99% for a few seconds before automatically rebooting the unit. Do not use the ForceUpgrade button. If the Uploader is not updating firmware for any reason, please contact AVPro Edge Tech Support to assist in troubleshooting your AC-EXO-X-Plus Kit.

7. Once the loading bar reaches 100%, use the Get Version button again to ensure the new firmware version is correct (note: screenshot below is only an example and may not display the exact version).

8. Repeat process for appropriate end not yet updated.  Using appropriate FWM 

9. Select the Close button  to close the port, connect opposite end then select the X at the top to exit the Uploader. The kit is now up to date on its firmware and is safe to disconnect from your PC and power. 

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