Going to need a bit more to offer any help of value. Review the following posts to start.
And - http://wiki.eleksmaker.com/doku.php?id=elekslaser_a3_pro - “Scroll down to the bottom “operating instructions” and follow that. Once you have it working in elekscam, it should work in lightburn. Follow the instructions to the letter and that will get you up and running…”