This transmitter is getting a bit old but there are still some out there (I bought one!). I searched for the latest firmware but most of the files on the HobbyKing website came up with an error when I tried to download the latest firmware (which is 1.0.8). Note the Flysky version of the firmware update will not work with the Turnigy branded transmitter. I eventually found a file which downloaded (which is dated 2016!).

The firmware can be downloaded here https://www.dasnz.com/wp-content/uploads/2025/11/Turnigy-TGY-i10-firmware-1.0.8.0-1.zip

I screenshotted the AI Overview from Google below which is wrong. If you download the Flysky version and run it, it won’t find the transmitter.