Since the server pushes update notice to different serial numbers by batches, it may take some days for you to receive the FOTA notice. Thanks for your patience. You may tap “System updates” in [Settings] >[System] to check if there is new firmware available. Or, you can also try to manually update firmware by referring to the following link. How to update firmware on my phone?
【Release Note】 Updated security patch Updated APN settings Adjusted the boot animation Support six new languages in India (Telugu, Bengali, Gujarati, Kannada, Malayalam and Tamil) Enabled Brazil Vivo VoLTE/VoWiFi Integrated ultrawide camera and main camera on the zoom slider Added a setting to change the styles of power button menu Added an option to adjust the ringtone volume once incoming call occurs Fixed that user can't have phone call when using the 3.5mm headphones without mic Added the ability to show AM/PM with 12hr clock-format