OSAKI OS-AI VIVO 4D+2D INSTRUCTION MANUAL

vivo4dAI Technology Intellent Voice Control Duo Mech™ 4D+2D Mechanism Self-Adaptive SL-Track Dual Mechanism Technology Intellent Voice Control Touchscreen Remote Controller 52 CellFind the answers to all your questions about vivo smartphones. You can find system updates, settings, how-tos, and user manuals here on the official vivo website.