This is a 5year old phone and samsung is stil releasing biannual updates. Impressive to say the least. If only they provided sdcard slot on higher end smartphones
Download the netmonster app from the playstore. Click the 3 dot menu at the bottom and tap on phone info. Now choose NR for network selection if you use jio. This will force 5G for your smartphone.Beware, it will mean no network if 5g is not availabl...
Search for 'secure lock settings' and turn on 'lock network and security' settings. That should disable toggling flight mode, GPS, data without your screen lock
