Go to Solution.
You can use your present sim
if you are in a 5G area then follow this guide to use the new sim
Guide: Sim Swap: a mini guide 2017 update
View solution in original post
If you want 5g, do a sim swap to use the new sim Guide: Sim Swap: a mini guide 2017 update
If not, just use your old one.
Track usage, upgrade and get support with the My O2 app