Hello, i have a problem with bootloader on my FrSky XLite Pro. When i holding center of direction pad and trying to launch my controler it turn on normaly(bootloader does not open). Is there a posibility to update firmware without opening bootloader, maybe by cable to computer?

If you're running OpenTX then just with your FrSky X-Lite left powered off, connect it to your computer with a USB cable and run the OpenTX Companion which has the ability to flash firmware over the USB connection. Connecting the FrSky X-Lite to a computer with it powered off automatically puts it into bootloader mode for flashing via USB.

Likewise, if you are running EdgeTX on it. Do the same but use the EdgeTX Buddy firmware flasher via an Microsoft Edge or Goggle Chrome browser and flash the firmware over the USB connection with that.

Either of the above should work as long as your FrSky X-Lite has sufficiently charged batteries and the controller mainboard isn't dead.