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i3ALLSYNC TX45 How to do a firmware upgrade of the hardware transmitter


Only use for i3ALLSYNC TOUCH Transmitter 4.0

Make sure to connect the ALLSYNC transmitter to your computer before you continue the process below.


1. Unzip the file and open UpdateFW.exe (choose the most recent version)

Version (Feb 2023)

Version (July 2024)

August 2025

TX45_v2.5.2.zip


TX45_v3.0.18_v3.5.18.zip


RX DONGLE TX45H


2. Select “Connect” in the dialog

image-20230215-104202.png

3. Select ‘Update FW’ and choose the suggested ‘.BRN’ file which is located in the same
directory with the firmware update tool

image-20230215-104746.png

4. Select ‘OK’ and start the firmware update process

image-20230215-104804.png

5. DO NOT disconnect the power source while blinking the purple LED

image-20230215-104830.png

6. I3ALLSYNC Tx will reboot after finishing the update