Does vivo phone support 5G network?
What should I do if there is no network and signal?
What is VoLTE?
What should I do if the data network speed is slow?
Why can I not use data network?
My apps cannot connect to network. What should I do?
Why can I not watch videos with 4G network?
It prompts "There is a problem with the security certificate for this page" while visiting the website. What should I do?
Why can I not enable the network of two SIM cards simultaneously?
The downloading in the background always stops. What should I do?
Why can I not turn on the data network?
Why does the data drain much every day?
Why can the apps running in the background not connect to data network?
The online files cannot be downloaded normally. What should I do?
Can I use data network when I am on a call via the main card?
Why can I not use data network when I am on a call via the secondary card?