my iphone (original) is randomly not getting service where i normally get service, like my house or just around my town. The ting is, if i turn it off and on again, it will have full service again for about a half hour, then blank out again. Then, sometimes it will say i have no SIM inserted, but once again, if i turn it off and on this will fix.
how do i fix this without having to turn my phone off constantly.