Welcome to vivo Support

Can Y51L be updated to support VoLTE?

How to turn on VoLTE?

Why can I not use VoLTE?

Does the phone sold out of Chinese Mainland support the VoLTE network of China Mobile and China Telecom?

What is VoLTE?

What does the HD sign in the status bar mean?

How to use iRoaming?

How to turn on VoWi-Fi?

How to buy iRoaming?

Can Jio SIM card set as the additional card?

What is iRoaming?

Will my SIM card be disabled when I activate iRoaming?

Which countries/regions does iRoaming support the data network service from?

What is data roaming?

Why is there no iRoaming on my phone?

Which payment methods does iRoaming support?