I have updated my iphone to 17.1.1 yesterday before update i had no issues with my network or the sim card after update my phone shows sim failure.I have even tried the same sim with an another phone there too the sim didn’t work.
Please note to this problem and give a solution if any!!
THis happens when we have older SIM Card bro. Can you visit the showroom and get new sim card for the same number? From my experience 2+ years older sim cards did face such issue due to some firmware problem.
So getting new sim card for same number did help some of our audience too. Do try and let me know if that helps bro.
Sure bro!! Let me try and inform you✌🏽