https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1318183#M74458 Just to add - when I switched over last year I had to a network reset and reboot to get it to kick in. Fri, 03 Apr 2020 17:46:48 GMT BOSSGOGG 2020-04-03T17:46:48Z https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1317647#M74447 So, basically I've swapped sims and did it as it says to do it!<BR /><BR />So my number hasn't changed, but I now cant call out at all it says "number not valid" and when people try call me it says "call failed"<BR /><BR />However I can still send and recieve texts? Please help I like to call my mum a lot during this Covid-19 lockdown.<BR /><BR />Android<BR />Software completely up to date.<BR />Samsung Galaxy S10+<BR />O2 Pay Monthly Fri, 03 Apr 2020 11:56:32 GMT https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1317647#M74447 BertieWeaver 2020-04-03T11:56:32Z https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1317648#M74448 <P>It's not completed yet.</P><P>You need to reboot phone a few times to help it along.</P> Fri, 03 Apr 2020 11:59:42 GMT https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1317648#M74448 MI5 2020-04-03T11:59:42Z https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1318183#M74458 Just to add - when I switched over last year I had to a network reset and reboot to get it to kick in. Fri, 03 Apr 2020 17:46:48 GMT https://community.o2.co.uk/t5/Android/Swapped-4G-to-5G-SIM/m-p/1318183#M74458 BOSSGOGG 2020-04-03T17:46:48Z