Sites where mobile phone repairmen "live"?

Question

Do it yourself

There is a product that is designed for those who repair mobile phones. Prompt forums, groups in social. networks where such a target audience lives.

Answer 1

www.gsmforum.ru

Answer 2

flea markets, there are a lot of them.
For example, search VK
Flea markets for phones

Answer 3

In Ukraine, I like the service "Throw a boar" where all the repairers and not only live)