I have replaced the sim - turned off/on, airplane mode, been advised it might be 3G switch however a friend on ID still had service when they were in the same location as me. Was able to make/receive calls when first switched the sim. Took sim out and replaced back in - was able to make calls for a little while and now back to unable to make calls. I’m in DE4
Solved
unable to make or recive calls iphone 12
Best answer by andewhite
MajellaS wrote:
I have already replaced the sim.
Have you tried a NETWORK RESET,
Your iOS user guide has the steps required for this procedure.
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