Other day I was getting help on a different issue and the very helpful tech suggested I get a new SIM card which he stated started with a 5 or 6 I.e new update sim card which is on it's way to me. I'm guessing that this is for 5g my phone is 4g so if I'm correct and new sum card apply to 5g service will it work in a 4g phone? Will there be a problem or will I be ok anybody know or can provide more information is the 5g sim card starts with 5 or 6 guess that apply to sim card number where think mine has bunch of 1 at start not real sure how this works as 5g begins to take place
