You need to enable 5G NR (New Radio) on your OnePlus 8 and 8 Pro. For that, simply hit this code on the dialer app *#*#4636#*#*. Proceed to ‘Phone Information’ and then, select ‘Preferred Network Type’ . You need to choose between these two options to get a 5G NR setup on your device.
Read moreWhy does OnePlus 8T not show 5G?
You must have a network provider who provides the VoLTE/VoWifi service on your mobile plan . The VoLTE/VoWifi settings will be in your Sim & Network settings, if its not showing and you have a Network provider that supports it as well as a good 4G LTE signal then try the following to see if this will enable it.
Read moreHow do I activate 5G on OnePlus 8 Pro?
Choose SIM & network. Choose Preferred network type. Choose 2G/3G/LTE/5G (Automatic) . The OnePlus 8 5G has now been configured for use of 5G networks.
Read moreIs OnePlus 8T 5G compatible?
This phone is unlocked and compatible with GSM + CDMA/4G LTE + 5G networks . With 5G, you can experience extremely fast downloads and streaming content up to 4K resolution. For additional connectivity, you can use Wi-Fi 6 (802.11ax) to access local networks and the internet.
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