Challenge!electronics speed control?

I have an electronic speed control from a company called tekin electronics.these control a 3 phase brushless motor on a remote controlled car.because the company came out with a gen 3 and this is only a gen 2.which they stopped selling 2 years ago…they refuse to repair anymore and will only send me a gen 3 for a discounted price if I send the broken gen 2 in.i have seen u take on challenges before and I was curious if this is something you would try?there is a that fine line between paying to get this fixed or using it to get a reduced price on a new unit.but I’d like to hear what you think on the situation.let me know.thx