I'm afraid BlackView have shot themselves in the foot with this device. The BV7000 Pro offers a rugged, waterproof machine with market leading RAM (4GB) and memory (64GB). It should have given Samsung a serious challenge for its relative budget price. Unfortunately, they have opted to use a non-standard variant of the USB cable with a connector a couple of mm longer than the proper specification. The result of this is that if you damage the supplied cable or it gets stolen from your office, a new cable off the shelf does not fit the socket on the phone. Rendering the device useless. A very serious design flaw. Best avoided.
An excellent mobile!