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hi my iphone 4 is in searching no service i have checked antenna all screws on mobo little blue inducter was missing but now replaced phone is not locked and on my icloud worked once out of the blue in a cafe but when i left it went bk to searching no service any help would be greatfull
First simple step is reset your time and date (I do it by connecting the phone to iTunes, “trusting” and waiting or the clock to adjust, or by connecting to Wi-Fi and toggling Airplane Mode on/off). Once time is reset, reboot your phone by holding and pressing home + power button for ~12 seconds. Restart and test. Does that help in any way?
