Short answer: “Reset network settings” clears saved Wi-Fi networks/passwords, paired Bluetooth devices, VPN and APN tweaks, and some mobile preferences. It doesn’t erase your photos or apps and doesn’t delete eSIM. Use it when Wi-Fi/Bluetooth/mobile data act up especially after an update or...
Short answer: Turn Airplane Mode on and off, reboot, reseat the SIM with the gold contacts facing down in the right slot, clean contacts with a dry lint-free cloth, and reset Settings → System → Reset options → Reset mobile...
