You can't answer the phone and send and receive text messages when you enter the office, but you will be fine when you leave the office. What's going on here? (I used vivo Y 13, China Mobile.

Sorry for the inconvenience!

For example, in some tall buildings, basements, tin houses, remote mountainous areas and parking lots, cell phone signals will be affected.

I suggest you try the following methods:

1, try another time and place.

2. Restart your mobile phone and try again.

3. Update the software to the latest version, or try to restart the installation after uninstalling.

4. You can upgrade to the latest version online and try to optimize the system: Settings-More Settings-System Upgrade-Check the update immediately, download the upgrade package according to the prompt, click Check and Install, and the phone will restart and automatically enter the upgrade mode.

If you have any questions, please feel free to consult us. Thank you very much for your support of our vivo. I wish you a happy life!