I also have the same problem... My blackview is not working anymore, but impossible to get in touch with an after sale service...
Mr admin, is there any chance you could give us a contact number, or email address, or link to a website where we could find that ?
Thanks.

Hello, I've bought a BV6000 recently, it works great except for one, but pretty annoying, thing. It's not recognized in MTP mode, so I can't transfer anything from my computer. I've tried to update the driver but it's not working, it says there was an error while attempting to install it. Do you hav...