They don't work, that the issue, people on this market are idiots I'd say (developers) they don't know how to code anything properly and sell most pasted disgusting sh*t I ever seen.
It's obvious since I am currently radiant with 60-70% win rate and there's like no other person in EU who has similar win rate from devs from here.
People just pay for IT students to code something that they don't even have strong basis on, that's why there's no way to currently get working spoofer.
I mean those people are dumb to the level where serial number of hardware is impossible to spoof, but I do it all the time through developer firmware