Macbook Air sound problem
Basically my dynamic stopped working for a few weeks now. It happened because i put wrong device in dynamic, since then there is no sound in my computer. I took it for repair today, to a few places since we do not have official Apple support here, and they told me even if they are fixing mechanical problem they have to delete everything from it. Is it true? Is it avoidable?
MacBook Air 13″, macOS 10.13