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Hello! It's unfortunate to hear that you're experiencing connectivity issues with mobile data on your Vivo Y21. Having to restart your phone every time you want to use mobile data can indeed be frustrating. There could be a few potential reasons for this problem, and here are a few steps you can try to troubleshoot the issue:
Check your APN settings: Make sure your Access Point Name (APN) settings are correctly configured. You can usually find these settings in the "Mobile Networks" or "Network Settings" section of your phone's settings. Contact your mobile service provider for the correct APN settings if you're unsure.
Reset network settings: Go to your phone's settings and look for the "Reset" or "Backup and Reset" option. From there, you can choose to reset network settings. This will clear any saved Wi-Fi networks, Bluetooth connections, and mobile data settings. Be aware that this will also remove any saved Wi-Fi passwords, so make sure you have them handy.
Update your phone's software: Ensure that your Vivo Y21 has the latest software updates installed. Manufacturers often release updates that address known issues and improve overall performance. Check for updates in the "System Updates" or "Software Updates" section of your phone's settings.
Try a different SIM card: If possible, test your phone with a different SIM card from another network provider. This will help determine if the issue is specific to your SIM card or network.
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