I have a Galaxy S4 which is fine but the battery life is now poor. It has a Micro sim. I am thinking about buying a Samsung J6 off Amazon which has a Nano sim. I have asked o2 to send me out a new nano sim which they are doing.
What do I do when I get the new sim? Is there any online guidance about swopping the sim and transferring the information fro one phone to the other?
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Are they sending the correct sim for your account as monthly and PAYG sims are different?
Help on backing up and transferring data here too https://community.o2.co.uk/t5/How-to-Guides/Backing-up-your-phone/bc-p/1114212