Hi, I was recently sent a new 4G SIM for my Lenovo P2 phone for an upgraded contract, I replaced the old SIM and received the text to confirm the switch was successful and my old SIM was no longer active. However with wifi turned off and mobile data turned on there is no internet connection available on any apps. My old SIM did have working 4G data however.
Thanks, turns out entering the combined APN settings did fix the issue. One thing to note it was mentioned there at the bottom to "Leave all other options blank/Not set", however if I set the "Bearer" field to Unspecified 4G would not work, it needed to be set to LTE to work.