Activation and Sim card problem
I have an iphone XR Max, i updated the phone to ios13.1.2 via itunes and it was a success, but the phone doesn't want to activate. The error is : unable to activate an update is required to activate your iphone. The phone doesn't say anything about the simcard, it shows nothing about the sim card and its like it is searching for simcard for forever whether the sim is inserted or not.