Make sure your radio controller is working in the windows. Check windows key – type in the search window “Set Up USB game controllers”. there Should be “Jumper TLite joystick”. Press [Properties] and move the sticks. The Axies should move if you move the sticks. If everyting works, then it is ok, and you should be able to set up the controller in the simulator.

hi, i plug in in my pc , and it recognize as jumper t lite, but in liftoff simuator it wont apper?

There are eight dedicated trim buttons on the T-Lite radio. You can trim the sticks at any time.

Pretty much plug & play by using type C usb cable

You can configure what it shall be when USB is connected:
Joystick, Mass Storage or ask

I have not tried it yet as I have my FS-IA6B bound to a FS-i6x TX, which has two aux potentiometers which I configured to use in flightgear. (There is a linux driver to use IBUS via any USB-serial converter as joystick.)
The FS-IA6B has (at least) 10 IBUS-Channels, which is not documented. Anyways, if someone finds a hack how I can add 2 or more potentiometers to the Jumper T-lite please let me know. This would make me very happy, and my GFs son too, as my Flysky TX would become obsolete to me and he would get it.
The auxiliary potentiometers and an eyelet for a necklace are the 2 things I really miss on the T-Lite.

There is a USB-C port for charging the battery and most likely for connecting the radio to the PC.