Thank you both!

Yes, I've tried. So, the factory reset should be done from the menu options - backup and recovery - factory reset, or from recovery mode?

From the menu o from recovery mode?

Ok, there is no hurry, so by the moment I'll try:

-Update on my couple phone (same model), this night I can try and give feedback.
-Wait and see if there are anyone with the same situation.

I don't know if it worked before, the first thing I did was install all the incremental updates, and then start configuring and testing. I'd prefer to not lose all the configuration and apps, is there any test I can run insted of factory reset?

Hello, I have a new BV8000PRO, bought yesterday, I've installed all the updates and the camera button is not working. Even with a button remapper app it is not recognized. Someone else with this problem?

I've tried long press to open app and short press to take photo, none of then works.