No fix that I have heard of and the same issue on my 12ProMax purchased directly from Apple. New phone did not come with a SIM card and once the SIM from my old 11ProMax was installed Verizon sent an automated message stating that I needed to upgrade to a 5G compatible SIM. Didn't have problems until I installed and registered the 5G SIM from Verizon, now I am dropped from the cellular network constantly. Running 14.2 and have tried all combinations of Cellular Data options in Settings (disabling 5G etc..) I am wondering if this issue is tower specific and a problem that Apple and Cellular providers are collaborating on. Am going to upgrade to 14.2.1 but no fixes for this problem are listed in that update.
burkbe
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Orem, UT, United States