Thanks for the reply. I've already reset factory settings several times without success ...

Unfortunately I can not do this test, not having a nano sim ...

Unfortunately, the communication with the seller is unsatisfactory (does not understand what I write) ...
Could I try to flash a new firmware? Thanks so much

Good morning. I bought a bv7000 a few days ago. aesthetically it is a nice phone, the photos are beautiful, it is fast and responds well to commands. yesterday I tried it and I had no problems, except the unstable data network. last night it totally stopped working the data network, while the recept...