don't buy any devices from this seller! they are liers and untrustfull. ibought from them Ottocast i3 bmw, and from first day sim slote gsm was not working, after that by hotspot i hardly used it about 2 weeks with all time losing connection, and after that already 2 months device not working at all. i tald to seller do refund or change it by other one, but they didn't do that and all time tried to find way to put that it's from connection, i tried to connect 100 time with 100 other ways,as they told me, but any way vevice not working, and seller sdon't want send me other one and do refund