If your ASUS ROG Phone 5s can’t connect to 5G when 3G is off, try these steps:
Network Settings: Set Preferred Network Type to 5G/4G/3G auto under Mobile Network settings.
Carrier Compatibility: Confirm that your carrier supports 5G on this device.
Check SIM & Plan: Ensure your SIM and plan include 5G service.
Reset Network Settings: Go to Settings > System > Reset Options and select Reset Wi-Fi, mobile, & Bluetooth.
Firmware Update: Check for system updates in Settings > System > System Update.
For persistent issues, consider contacting ASUS support.
