How to solve the problem of installing Fgtech Galletto

I connect the device with my car and computer, install the driver ready. But FGTECH galletto v54 V51 software interface is grey. I feel strange about it. I cannot click it and change the language. What should I do?

There is something wrong for your connection.
Keep your software start then disconnect everything USB cable, Fgtech with computer and car.
After 20 seconds, connect everything again. Then Car ECU programmer software will turn to green and you can use it successfully.