Thanks for your feedback guys. By the way rooting can't be considered a solution to such issue, it have to be fixed by an official ROM. But at least one workaround has been found. ;) Considering the purchase of BV9500, but need to know now; have you officially fixed the microphone issue yet or not?...
Time of release can't be predicted. It will be soon.
It is not a good guarantee policy. I bought a phone with a big defect so I can not use it. Now I'll have to buy another one because I do not know when to fix the bug.