I have no access to my sim since last night. I understand 3G is being phased out but my phone is compatible with 4G so I don't understand why my Sim is not allowing me to use data or make calls. I have gone to Sim settings but whole section is greyed...
I have read through the link provided thanks, the status on the coverage and area shows everything is working fine and no issues, only thing left is whether to get a new Sim or wait as unsure whether this will resolve
