Step 1: Go to Settings > Connections. Step 2: Tap on Mobile Networks. Step 3: Tap on Network Mode. Step 4: Select LTE/3G/2G (Auto), LTE/CDMA, or one of the other 4G/LTE options to prevent the phone from using 5G.
Read moreCan I go back to 4G from 5G iPhone?
Choose “Cellular Data Options.” Pick “Voice & Data.” Change from 5G auto to LTE . Now you’ve forced the phone to operate on the older 4G LTE networks.
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