What should I do if my phone lags or hangs sometimes?
How can I prevent my phone from overheating?
How to charge my phone properly?
What should I do if I forget the lock screen password?
What is Game mode?
How to register vivo account?
How to make my phone last for longer time?
What is vivo General Warranty Policy?
What should I do if my device cannot be powered on?
How to extend the battery life?